I have heard of lots of people who were successful with it, but on the other hand heard of a few people who had kidney infections, viral infections etc on it (no idea if this was related to herbalife or not). Although I am by no means slating it and have tried it myself, what I did not like about it was that it was quite "gritty". I was using a blender/smoothie maker but it just never mixed properly for me. Are you going to try it or have you started it?