I've been doing CrossFit since October 1, and so far I've lost 37 lbs. I still have a way to go, but it works for me. It's not cheap, but IMO it's worth every penny. Each class is like having a personal trainer working with you every time. If you're a stay at home kind of person, its easy to find a gym online whose programming fits your goals. There are plenty of bodyweight only workouts, as well.
Like any exercise program, you'll find naysayers/detractors, but the important thing is finding something that drives you to want to go back the next day. CrossFit does that for me. I know a lot of people like the routine of a typical exercise program, but I would always find myself getting bored, tailing off, and eventually finding reasons not to go to the gym. When I walk in to the gym every day is a surprise! Every workout has 3 aspects, strength movements, gymnastic movements, and metabolic conditioning. I'm getting stronger, as well as improving my cardio endurance. I still take a day every week and go for a jog, as I'm registered for a couple 5K's this summer.
Diet absolutely has a lot to do with success. I've noticed when I'm not as strict with my food choices, my weight tends to stagnate no matter how often I'm working out. I have about 50 lbs. to go to reach my goal, so my road is still a long one.
