I LOVE MOUNTAINSIDE! I've been a member for about 1.5 years. The staff is awesome. It's in a great location. It's the perfect size. I specifically go to Mountainside's because they have one specific machine that a LOT of other gyms don't have, it's a Rogue brand. I see a lot of reviews that the gym is too small. I personally like smaller gyms so if you don't like smaller gyms, then go elsewhere maybe? The basketball court is usually busy when I go, which I think is great. When it's not busy I'll use the court to workout too. I've been to Scottsdale Pavilions, Shea, and Gilbert locations- I like this set up the best! It is one of the smaller ones but I just love it! Lots of open windows to look outside, the members are nice as well! The only thing I would change is I wish there were more of a variety of music to listen to when I come in I've been hearing the same songs over and over. I don't mind too much though! I don't like to wear headphones when I workout. I'd give 5 more stars if I could!