I bought 1K tabs earlier this year. And I agree with ryan ( I have a book too) and they may be under dosed, but yet I did like them. I get pumps like I never experienced before. It's such a good feeling you don't want to quit. I was taking two 25mg tabs a day. The first tab, I cut in two, took half mid morning, half mid afternoon, anf a whole one pre-workout. My liver is very sensitive to the stuff so my cycles have to be short, about 4 weeks, then a long break. But that's just me. It really scews with my cholesterol.
Combined with AAS, it gives good results.
PEACE.