I've used NoXplode and Superpump250... I dont knock those products because there are obviously HUGE fans of them and they do work for you guys, but I never had as great a preworkout experience until I started using AMPLIFY02. The focus, pumps, intensity, energy, inbetween set recovery has been off the charts. I dont ever feel any sides such as diahharea or any discomfort whatsoever with the AMP like i had with the powder preworkout products. So I guess it's just a matter of how your individual body responds to them. For me... Amplify02 without a shout of a doubt!