I looked at a Curves gym after DS was born but didn't really like the format. I love the Les Mills classes like Pump, Combat and Body Attack. I love the loud music, the full-on instructors and the whole vibe you get from them. The Curves gym was very sedate and quiet, the participants much older and the classes were not like the regular gym at all. I think I wouldn't get the same motivation out of the Curves type of environment. Everyone like something different though, I just like the intensity and motivation of Les Mills class formats.