Yes, it does work but you have to follow it's principles after you complete the program. It's the only program I've ever used, so, I have nothing to compare it to. I liked that they had online tools, a support community, and they taught you about appropriate calories. What I didn't like is that some of the food isn't that tasty. I did the Schwan's program where you got frozen meals added to the menu and that helped. I lost about 15 lbs in 12 weeks which I think is a healthy amount as rapid weight loss tends to come back just as rapidly.