Absolutely love this place!!! Started off trying out the free week trial and fell in love. Everyone is so welcoming from the hello to have a nice day you receive every day, which goes a long way. There is constantly new workouts that will challenge you as well as provide modifications as needed. This is the best group workout class in Naples that will make you SWEAT! Trainers Kelly, Jason, and Daniel are very knowledgeable, kind, and extremely motivating!!

I can’t say enough good things about Six4Three HIIT Room. The trainers, the workouts, as well as the members, are all awesome. And the fact that they offer a Saturday workout that’s FREE to the public has got to say something about that, right? Thank you for making working out enjoyable again!!!

Great HIIT workouts and great trainers

This place is awesome. Be prepared to sweat! The owners Jason and Kelly are really great and know their stuff! The trainers also rock...Melissa is awesome and super motivating! After finishing the workout you really feel great about what you just did for you body. The equipment at this place is great, the gym is super clean and overall a really awesome experience. I definitely recommend anyone try this place out!

I love this place! Everyone is so friendly, the workout is challenging but doable and I always leave feeling great. And it’s really for all levels because you can adjust everything. So glad to have found this awesome spot!

I was out on a run, and popped in to meet two very knowledgable trainers. The studio is clean and the staff friendly. They know their game, and if you want a great workout that will leave you asking for a protein shake, welcome home!

I love six4three! As a runner and also someone who does a lot Insanity I was skeptical that this workout would challenge me enough. The founders Kelly and Jason have come up with a great workout that is easily modified to accommodate all fitness levels from the beginner to the advanced and everyone in between. The atmosphere is welcoming and encouraging. All are welcome! This is a workout I can stick with and I am looking forward to seeing great results.

So glad I was introduced to this motivating, great energy group! These awesome trainers are able to make sure everyone is getting a good workout beginner- advanced. Its a team like atmosphere with everyone encouraging and helping each other along. Love it!

Sweat Smarter Not Longer!! Every workout they provide matches that motto and then some..If you need a serious cardio and core workout with serious results, please give Six4Three a try because you wont regret it! They are also very knowledgeable when it comes to nutrition and they provide an awesome group atmosphere where you want to keep going because of the person next to you! Thank you Six4Three for bringing the HIIT!!