I just got my bottle in the mail today and had an awesome workout. I don't know if it was a placebo effect or not, because I just got it today and all. I don't think so, though. I was pumped the whole time, energy to burn, just knocking out supersets and not tired a bit. I could've went on like this for hours. I'll give it some more time to see if this is for real, but based on Day 1, this stuff is the shit.