I canít say enough good things about this product. I am a university football player so performance and endurance is essential. Iíve never enjoyed the ďcomedownĒ of most preworkouts. So I knew I had to give this preworkout a try and it was just as the doctor prescribed. Not only was my endurance through the roof, but the mix of my pump and vascularity had me looking like my veins were pushing through my skin. My performance never faltered so I was able to continue at a high intensity which is very important in my case. Iíve never used a product that was able to enhance my performance without the ďcomedownĒ experienced by most stimulant preworkouts. I would recommend this to any serious athlete looking to improve performance in athleticism, or even if your striving for that mix of pump and vascularity. And if that isnít enough to convince you, itís dirt cheap in price, you canít get a better preworkout for that cost. So if you donít take my word for it, fineÖ but give this a try and I guarantee youíll be coming back for more.