I find it outstanding and a real efficient workout. I think there are better ways to get fit, but not quicker ways. The forum has a real cult-like mentality, but who cares; why throw the baby out with the bath water? Try it for a few months and see if you like it. You might enjoy the brief, intense workouts. When it's too cold in upstate NY to set up my garage gym, I use a large chain-style gym and CF is better than what 95% of the people I see are doing.