Ive taken it. Ive taken pretty much every no product out there. I would say you get a little less of a caffeine buzz from it but you get really good pumps on it. Not testosterone like pumps, don't get me wrong, but the first week they are pretty substantial. I have noticed I don't get any weird sides from it. I have discovered that noxplode effects my bronchial tubes and makes me somewhat short of breath. This was verified by my doctor. It gives you a pump in them and when you have asthma not good. I also get some weird pains in my joints from no. It stops within a week of taking it but thats what happens. I have black powder right now and I don't like it at all. It has made my blood sugar fluctuate. I tested that with a meter. I get weird sides from everything though. I personally would have to say superpump has been my favorite. I hope my in depth analysis answers your questions. LOL