well, im taking it and all i notice is i am able to lift a bit heavier,my pumps are crazy, my focus is unreal, and i can wok harder a lot longer without having to "make" myself finish my routine.
the bad sides that i have from time to time is my lips start goin kind numb..and sometimes they just tingle. also, my heart rate will get a lil high..but only on somedays..not always. guess its just different poeple have differnt sides.