I’ve been training with Jamie since I was little, and honestly, I can’t imagine where I’d be without him. From day one, he’s been patient, motivating, and completely dedicated to helping me stay focused on my goals. Over the years, he’s taught me discipline, consistency, and how to push myself even when I didn’t feel like it. The progress I’ve made with him is unreal, I genuinely don’t even recognize my body anymore. The amount of muscle I’ve gained and the confidence that’s come with it are beyond what I ever thought possible. Jamie truly dedicates his life to helping his clients change for the better, both physically and mentally. You can tell how much he cares by the time and energy he puts into every single session. Another thing I really appreciate is how flexible his schedule is he always finds a way to make it work, no matter how busy things get. That kind of commitment is rare, and it just shows how much he loves what he does.If you’re looking for a trainer who truly invests in you, believes in your potential, and makes your goals his priority, Jamie is the one. He’s been such a huge part of my baseball journey, and I couldn’t recommend him more.

Red Fitness Lounge is an amazing place to work out! The atmosphere is welcoming and motivating, the equipment is top-notch, and the trainers are knowledgeable and supportive. It never feels intimidating, and the community vibe makes it easy to stay consistent and enjoy every workout. Highly recommend for anyone looking for a fun, results-driven fitness experience.

Jamie has trained several of our youth athletes. He is a phenomenal trainer who actually cares about his clients. The kids love Red Fitness, and training with Jamie. If your child wants to get into weights, send them to Red Fitness.

Great workouts! Great trainers! Clean environment. Definitely recommended…

I’ve been training with Jaime for a few months and have already made so much progress on my health journey. I’ve not only started losing weight again after a plateau of a year but gained muscle and strength. I have always been notorious for skipping workouts and making excuses. He gives just the right amount of tough love and gentle encouragement to help you stick to a plan.Jaime makes workouts fun yet challenging to keep you motivated. He also has extensive knowledge which helped me rehab from a previous surgery to give me full range of motion again. Whether you’re ready to begin your journey or hit your fitness goals, I highly recommend Jaime and Red Fitness Lounge.

5/5！ Great location with excellent environment - clean, well-equipped, and especially ideal for personal training sessions. I‘ve had a really training experience with my trainer, Doveed Linder, who's incredibly professional, responsible, patient, and skilled. He's great at motivating people and always tailors the training to my goals. Whether you're trying to lose weight, build muscle, or simply develop a consistent fitness habit, Red Fitness Lounge is truly a wonderful place to train!

Jamie Mushlin, owner of RFL, is asharp gym owner. He's very well-respected in the St. Louis fitness community. His gym is clean, well run, and has a positive vibe. This is an ideal location for high-end personal training in Clayton.