I don't think anything has surprised me, so much -- there was so much I simply didn't know about the kid to begin with. I remember seeing him in the college all-star QB challenge and it was clear he had a hell of an arm, and obviously his performance against Dallas last year was an eye-opener.
What I'm seeing that I like is all stuff you folks have mentioned -- most of all, though, it's the demeanor. He seems driven and focused and so far nothing has knocked him off course -- not all the offseason crap, not a shoulder injury, not a bad performance against Tampa. All of that would topple a pretender, and he's withstood it wonderfully to this point.
I'll just point to his post-game on field interview, where the d-bag interviewer predictably went right to a Favre question -- Aaron ignored it completely and just focused on the game, saying he was proud of the complete team performance they put together. One out-of-context quote aside, he's clearly a classy kid who's got his head on straight and his focus where it needs to be. I couldn't be happier with where he's at right now.