Currently on Day 3 of and have to say I’m quite impressed. Was skeptical at first given some of the negative reviews in regards to the over the top cracked out / stoned feeling users have reported. Personally for me, I have experienced none of these issues to date. It actually puts me in a fairly happy mood. The energy is steady and definitely last my entire workout. Taste isn’t too bad either. I find myself delaying my post-workout cardio, just so I can go get a few extra sets in first. The pumps are above average and focus/tunnel vision it provides is noticeable. All in all I'd say DS his formulated a top notch product here.