Roberts does have a good base of knowledge concerning AAS, and other aspects of the whole process...his theories on t-3 have been very interesting and seem to be backed by a lot of good research. But like with anyone, I don't completely agree with everything this guy says, for example, in his entire new PCT protocol he calls for using Aromasin during PCT...this has been a hot topic on this board in the past. While the idea does sound good, much of the testing done with Aromasin is based on studies done on pregnant women, not educated gear users, so there lies a bunch of questions on that subject IMO. But again, Roberts is no fool and provides a lot of good info for discussion. I agree with what BigJohn said, just because this guy is not huge does not mean he doesn't know what he's talking about. You'd be hard pressed to find anyone who disagrees with Llewellyn and he himself is not a big guy by any standards, but he has proven his knowledge over and over again.