I've been meaning to throw in my two cents. I'm a stimulant junkie without doubt, or shame for that matter. I frequently try different pre-workout stuff, and I have to say this is my current champion. It's good clean energy, helps you get a good pump, and it taste pretty damn good. It might be just me, but about two hours after a workout, I could eat a horse which is unlike the regular formula. I recommend taking Micro about 45-60 minutes before a workout as it is slow to peak.