I started going to FitBody a couple of weeks ago and so far love it. Dave is a great trainer and the workouts are always different. He plays lots of upbeat great music so it's easy to get your blood pumping.
They use encouraging comments instead of putting you down or screaming at you like some boot camps. If you get hurt, or need a break, no one will make you feel bad about.
It's also one of the only boot camps with lots of night classes so it actually works with my schedule.