well he did gain 20lbs but for a newb to working out he could have probably done the same just by training, eating, and resting properly. Obviously he is kind of a youtube attention whore. If the steroids got him motivated to work out and do this and he couldn't have done it without them then I guess they helped.
From the videos it looks like his diet and his training is kinda weak. He doesn't have very good form or control of the weights when he is lifting. He's headed for failure imho.
Fun to watch though, thanks for posting the vids!