It works. Very solid boost.
I'm very particular with my workout powders as honestly, most do not work great for me. This one always works, and almost (-too-) well, so I usually have to limit my serving size. Price is high for sure - but I end up using less powder to get the same effect of cheaper powders, so it pretty much balances out.  The flavor is ok - but I'm pretty much in it for the energy only.
Rating: 4 stars