I bought a container of it before.
The first 2-3 workouts with it were amazing.After that though,I never got anything out of it.It tastes amazing though.
If you got the money to burn I would suggest it soley on the taste.I know that somes crazy,but damn it's good.
Anymore I stick pretty much to NO XPLODE for pre-workout drinks.I tried Nano Vapor,but I had a very,very bad experince off of it,and almost had to be rushed out to the ER.
I self admit their are a lot better people on these boards to answer your question,but that's what I like.