It's pretty much like anything else, it works for some, not so much for others. I didn't get good enough results to make it worth my money, but I have seen others (I was an active rep for awhile) that lost a good 4-5 inches in one sitting.
The bigger problem I have with it is the reps. If you look at the top reps, many of them look like they could stand to lose a good 15 pounds, some of them a lot more. Yet they're going around touting these wraps (and usually the fat absorbers and carb blockers the company also sells) and how well they've worked for them and yada yada yada...but they don't look like a product of the product!
This isn't to get down on the company itself, they do have a product or two unrelated to fat loss claims that I enjoy. But I'm also a big proponent of busting your butt to get yourself in shape and if you're gonna be a rep for something, represent it well.
*DISCLOSURE* I am technically a rep for that company, but am completely inactive and only keep it because a couple of close friends signed on under me. I don't even earn commissions