It took me a while considering buying this because of the price, luckily I picked some up half price at the fitness expo. The first night I had it, it was amazing, did the trick most definitely and felt tired almost immediately after drinking it. It doesn't help you fall asleep, but helps you feel drowsy. After two weeks of taking it about 3 days a week, I feel as if my body has built up a tolerance to it and it no longer has any effect on me...
It mixes relatively well, but still has lumps on top. I had fruit punch flavour and it was really good, pretty sweet for last thing at night before bed but you get used to it. Due to the price I probably won't purchase this again.