I jokingly refer to Amp02 as the "ghost of muscle future". I get so freakin' pumped that I look like a monster. It kinda freaks my wife out. At the very least it is immediate gratification for working really hard in the gym. It's kinda like aggression bio-feedback. I haven't tried NO Explode, but I tried some other shit that I got at GNC from a sales guy who told me it was the same thing. It didn't have anywhere near the same effect as Amp02, but he probably made a better commission on the sale