Haw anyone used this? Has it been helpful at all, and does it have any yicky side effects?

Thanks guys.

I think I tried something similar before, it was mega green tea or something like that. I couldn't tell if it did anything regarding weight. It did give a little boost of energy, presumably from the caffeine in it, kind of like as though I had drank a couple big cups of coffee. I wouldn't buy any more of it because I didn't think it was worth it. If I feel like I want the benefits of green tea, sometimes I will make a hot cup and sweeten it with one pack of equal. It is pretty good that way.