I don't know where to start. It's everything I wanted in a pre workout. The focus of being on a mission in the the gym to conquer the battle of fatigue, lack of focus, and sometimes just going thru the motions has just ended today. I could never train on a empty stomach but craze push me through it with ease. My focus on the movement of the exercise was sick, and I mean that in a good way. The weight increases were subtle but the focus and concentration were incredible. Then the pump became prevalent and was very tight and swollen for me. I'm hooked and I don't feel like I'm on crack like the others. When I find something that delivers I'm a happy gym warrior. Congats to Driven Sports on this supplement, A ++++.