A good friend of mine started selling ItWorks products when it was very new. She fell in love with them and had a lot of success with their products in many ways (losing weight, getting off medications, feeling better in general, etc). I watched her transformation firsthand after watching her struggle for almost 10 years of various medications, personal trainers and crazy diets, so of course I was anxious to try. She actually gave me a box of wraps for free and they did virtually nothing for me, so I bought 2 more boxes, just to see...nothing. Same story for my mom and for my grandma - nothing to show, but lots of money down the drain. I know that they have worked for some people, but to me that is a lot of money to spend on something that *might* have results.
Be aware too, that ItWorks is, in fact, an MLM company whether their "consultants" want to admit it or not. Although there are people who have been successful in selling it, they make it sound way too good to be true, unless of course you are an amazing sales person.