Ever since the "University of Ohio State" comment I've had my doubts, and everything I have seen/heard from him (the few times I've been around him) and from what people tell me, he seems like a giant douche.
Anyway, thats not really the point. As you all know the quarterback position is 100x more complex than any other. If he has his head on straight, good work ethic, and can learn pocket awareness, ability to understand whats going on every play, read defenses, make good throws, etc then he will be a great QB. Thats a pretty big IF. From what I've seen so far I just don't think he'll be as great as everyone thinks.