I have been working out a Golds Gym in Bangalore for quite a while now. I must say, its simply a great place. The gym is really neat and well maintained. The staff and trainers are really friendly and well mannered. The gym is split into 3 floors and that helps a lot. You dont see a lot of crowd and chaos on the same floor. They have really good equipment and quite a few of them. I hired a personal trainer for myself and was skeptical about its efficacy in the beginning but I made a really good decision. The trainer is very good, knows his job well and pushes you do your best. Very friendly and unassuming at the same time.
The only negative point of the gym is the really cramped changing/shower room. God help if you land up there during peak hours.