I have used it and honestly, I would not expect much....I would stick to ol Creatine, Glutamine and a ton of FOOD is you are going the natural route or are in between cycles
I use Tribulus with Clomid post cycle to aid in natural test recovery. I swear that it makes me irritable when I take it and I also swear I get better pumps too. Maybe it is like everything else and it differs from person to person.