They're both good products. (glutimine's effectiveness aside).
Protein Factory has always rated equal to or surpassing label claims. They got a bum deal when 1fast400 -- a supposed unbiased tester said that some batches were a little underdosed. Of course, 1fast400 was planning on doing business with Protein factory's competitor so the whole thing stunk from the get-go.
Ask ulter and Sofa George about this shady 1fast guy. He's a big promoter of Ergopharm stuff too -- making ridiculous claims that have been proven wrong. A real swindler.
Alex was so pissed that he sued 1fast400 (Forgot his name -- Mike someting or other) but trying to prove someone falsified tests is next to impossible. So the battle goes on. But every other test done has shown they meet their claims. And you can't beat the price.