I dropped in to Genetics while in town for the day. The gym was clean, had all of the equipment that I needed, and is located in a super cute neighborhood. Mike has created a welcoming atmosphere that focuses on fitness and fun. I highly recommend Genetics and will visit again when I’m in STL next! Less

I had the pleasure to work at OPEX with Mike for about 6 months. This place was perfect for me. Mike provides excellent structure to your workouts, and he is there to coach you through them if need be. You have access to the gym 24/7, so you can work out when it fits your schedule, and the amount of equipment there is incredibly comprehensive. It was very nice working out in a small environment with the same group of good people. Would very much recommend to anyone who is interested in starting their fitness journey, but doesn't know where to start. Less

Mike’s approach for former athletes is outstanding. It feels like going to practice. I love showing up with a customized program waiting for me every day. It’s like getting personal training 3-4x per week at a fraction of the cost. Highly recommend Mike and Opex STL! Less

I’ve been at Opex for over a year now after doing a lot of group fitness classes and at-home programs over the years that left me getting injured from the same repetitive workouts without much thought behind them. I love how the workouts at Opex are personalized to me and I feel more accountable knowing I have someone checking in on how my workouts are going (and making sure I enjoy them). Mike has done a great job of making the gym a community and I can’t imagine going anywhere else! Highly recommend! Less

The past few months have been great working with Mike at Opex. Instead of the one size fits all workout programs that are all over social media right now. Mike was able to help me with an individualized program to help reach my goals and continues to help me with those as life and fitness change. If you are on the fence about what Opex is or how Mike can help you, go ahead and reach out to him and get started on your fitness journey. Less

I have used Mike for over 10 years. I own my own gym and can do my own programming but choose to pay Mike because he's the best in the region. He finds out your goals and helps you achieve them. I'm in better shape at 45 than I was at 25, and a lot of credit goes to Mike. If you are looking to get in or stay in shape this is the best place in St Louis. Less

I just wrapped up my second month at Opex and I'm loving it so far! Mike definitely motivates me to stick to my 4x/week schedule and I've only missed a few sessions due to travel or illness. Consistency has been a huge struggle for me in the past so being able to work out as much as I do without the mental struggle every morning makes it so worth the price compared to a large chain gym. It feels like I'm getting true personal training for ~20% of the typical cost. With my busy schedule, it's really nice to not have to think about or plan my workouts for the week - Mike does it for me. The workouts are highly effective as I've already noticed major strength and endurance gains, looser clothes, etc. in just 2 months. Highly recommend this gym!! Less

I joined OPEX STL aprroxiamately 6 months ago. The framework, teaching and guidance I have received from Mike has been instrumental in my improved physical strength, balance and basic understanding of my body's ability to make improvements. I was looking to improve my balance and strength for fitness, and thus my overall quality of life. OPEX workouts offer me a variety of challenges aerobically, strength, flexibility and balance for my specific goals. OPEX offers individualized training in an informed, friendly & small-group atmosphere. Less

I have been training with Mike for the past several months. I have enjoyed the goal-oriented, individualized training. Mike incorporates his wealth of knowledge along with Opex content and resources to create a program that will suit you. The vibe in the gym is fun, and the times are flexible. I heartily endorse a visit here to shake you from your workout doldrums. Less

I joined Opex after doing the 1 month trial period. This is a gym for anyone looking for the most efficient workouts. Your workout plan for the day is designed just for you and is always ready when you get there. There is never a wait for equipment or machines. And most importantly, Mike genuinely looks out for his clients. He is always available to answer questions, explain movements, and to provide provide feedback when he sees that you need help. Less

I’ve recently started at opex after trying larger gyms and group fitness gyms. The individual design offered here tailored to your body and your goals allows for much more success than those other types of gyms. Also the ease of scheduling your workout times and viewing your workouts on the apps makes fitting workouts into a busy schedule much easier. Coaches Mike & Tyler are great, and you can tell that they genuinely care about helping each of their clients reach their goals. Less

I came to OPEX after trying CrossFit and not loving the one-size-fits-all group design. Coaches Mike and Tyler assess your individual strengths and goals and tailor a fitness program to help you achieve them. The energy on the floor is always positive and encouraging even with everyone working on their own program. Workouts and scheduling are all integrated seamlessly with apps which makes tracking your sessions and progress simple. Come check them out! Less

Great individually tailored/designed workouts take the boredom out of your regular gym/fitness routine. Opex St. Louis Central provides safe, fun, and friendly atmosphere to reach your fitness goals. Less

I have been coming to OPEX for about six months. Therefore, I believe that I have the perspective to write a review. I was looking for a personal trainer, but found something better than that. My main goal was/is to be consistent, and I think OPEX concept allows you to do that. You have to sign up for your workouts. You can sync the website with your calendar, so all your workouts are on your calendar. I love that! It helps me to stay accountable and come in, even when I don't always feel like working out. Of course, my workouts and the atmosphere at the gym are what I love the most. Your couch will get to know you and write a personalized workouts that will suit you and your goals. Your workouts might change based on your health, personal life events, etc.... and I think it is very important for the longevity of your fitness journey. No matter what your fitness goals are, you should give it a try, and I hope you will fall in love with taking care of your physical body at OPEX, as much as I and other OPEXers do ! Less

I have had an outstanding experience at OPEX Stl Central. Mike W, my trainer, reached out to me immediately following my info request to get me scheduled for an intro chat. We had a positive, zero pressure convo where he asked a lot of thorough questions regarding my goals and workout history. All of my workouts so far have reflected how closely he listened during that intro. This is the fourth trainer I’ve worked with in the past few years at different gyms, and this is the first time I’ve had workouts that meet me where I’m at. I’ve heard zero times “oh come on, you can do it.” Or “that’s fine, just don’t do it.” In other words, I’ve never felt like I’m being thrown some random cluster of exercises from a magazine, or doing the workout he personally likes to do. As a female, the atmosphere of the gym is great. Lots of females there working hard, everyone knows how to make eye contact, say hi, and let you work out. Very welcoming place. All the stars. Less

I highly recommend Mike and his OPEX team. I have a bad knee and Mike is able to take that into account when he plans my workouts. If you are looking for affordable personalized training give OPEX a try. Less

OPEX is at the top of my favorite gyms. The trainers are always there on the floor to help you. My trainer, Scott has the perfect amount of persuasion and is great at helping me reach my goals. I would recommend them to anyone interested. Less

Large gyms full of equipment I don’t know how to use and people who ignore more have always intimidated me. I didn’t know there was any other way to train though, until I met Mike and he introduced me to Opex. I LOVE that every workout is planned just for me, and the other gym members are real people I can relate to. The results and the scale do not lie!! This place is the BEST! Less

OPEX St. Louis has the friendliest people! They are very welcoming and down to earth. They offer individual programming, which help you reach your personal goal. They also go over your nutrition and does monthly fitness evaluation with individual. I also appreciate how everyone is always in their best mood, and provides you motivation to push through your workouts. Less

I've worked with Mike and his crew for 4+ years. I continue to come back because of the personal training approach used at OPEX St. Louis. My program is tailored to me, my strengths and my weaknesses. I'm constantly learning and improving, all the while bettering myself. Grade A Less

I really like OPEX. Mike and Scott, both the personal trainers, are knowledgeable and very attentive. They personalize your workout to meet your goals...which they help you set. Family atmosphere w/o being overbearing. Less

The individual programming from OPEX St. Louis Central helped me transition back into the gym after surgery and start weightlifting again. Mike worked with my limitations and interests, and I’ve really enjoyed the variety in my training. Glad to be back on a consistent schedule and feeling strong! Less

OPEX is awesome! Individual programming for your individual needs while still getting that group feeling being with others! Coaches are fantastic and results are REAL!! Try it TODAY!! Less

As a remote client, Mike and the Opex team is great. It's awesome to have a program customized to my fitness goals. I move quite a bit and it's great to have a consistent programming wherever I go. Also, Mike is very accommodating and tailors workouts to the equipment that I have available. I have seen great results in the short 6 months that I have been working with Mike and the Opex team. I highly recommend Opex. Less

Austin O’Neal and I were passing through while traveling and decided to drop in. We loved the space! The gym was clean, the music was great, and the owner, Mike, was extremely helpful and friendly. We have dropped into a lot of gyms over the years and we know when we see a good one. OPEX St. Louis Central is just that! Thank you for letting us drop in! 😊 Less

Opex St. Louis Central is a unique place. I really enjoy the workouts that Mike writes for me because they are challenging yet accomplishable and are customized to my preferences. I also love the community of the other members. Highly recommend for any skill level. Less

What an awesome gym full of friendly people. Dropping into a new place can be intimidating but Mike and the members were so welcoming. I recommend checking this place out. Less

OPEX St. Louis Central’s personalized programming is unlike any other gym in St. Louis. Mike is the first coach/trainer that has ever taken an interest in talking to me about my goals (in and out of the gym), likes & dislikes about fitness and struggles I have had with my previous attempts to get in shape and lose weight. My workouts are tailored to my abilities and I am continually amazed with what I am able to do and I couldn’t do it without Mike’s continued motivation and encouragement. Less

OPEX St. Louis provides personalized custom programs from committed knowledgeable coaches in a great facility. They will help you attain your fitness goals. Less

Opex is exactly what I needed when Crossfit groups classes became stale. Mike knows my goals, plans my individualized workouts and nutrition to meet those goals, and pushes me to get more. And the numbers don't lie - numerous strength and time PR's since plateauing with other cross training. Less