Personally I like him when he's LPing games other than Amnesia custom stories. Reason being is because he always throws the same jokes in the Amnesia LPs, for example Stephano, knocking off the heads of all of the statues, piggy, BARRELS!!!, etc. The jokes get really old after awhile.
That said, there is something funny about how childlike he is and how he copes with the horror in scary games (when he's not doing the same joke over and over again), I do admit though that they are a little bit childish, but he is endearing to me, especially when he gets his pants scared off. His reactions are hilarious and his tortured face makes me smile so much.
So, I watch him when he does a new game that I haven't played before because they are entertaining as hell to watch. I know that he gets on people's nerves a bunch though, and I can agree with that. He's a simple, happy dude who loves to play these scary games, and he has that spirit that I usually don't find in other LPers.