I've been working out at this gym for almost a year now and have nothing but good things to say about it. I'm a female who does a bit of cardio and weight lifting at this gym--never got into any of the classes, but I use the yoga studio and bike room every now and then. I find it interesting that previous reviewers have mentioned that people gawk at them at this gym and "to be careful" if you're a woman. I've never experienced any problems with the people that go to this gym. I've always thought everyone was generally pretty considerate and especially appreciate the fact that their machinery is always in good condition and that the place is consistently cleaned and looked after. The staff are pretty friendly too and the place itself is so well designed.
The only downsides might be how busy it gets during peak times and how they close during holidays (I know gyms that are still accessible even though they aren't staffed, but with that, there are safety concerns). I work and go to school so I usually end up avoiding the busy times. Overall though, this gym is perfectly crowded to me--enough people to motivate you but not too many that you can't even get on any machines or use any weights. But at the end of the day, it really boils down to personal preference.