Nutrex just re-released this product. HEMO RAGE is one of the strongest preworkouts I have tried. It doesn't, however, leave me feeling lightheaded or spaced out like some other really strong PWs do thanks to the new ingredients in this formula. There is no crash. It provides solid energy with a run through walls type focus. Flavor is not typically a big deal to me, but the citrus burst is delicious. This product also worked for me longer than most before having to switch to something else. I am still getting full, strong pumps even at the end of the container (when most products typically lose most of their effect after a week or two). 1/2 or 3/4 of a serving is enough for me, so you should be able to get some extra value out of a tub. 9/10 for this preworkout