I'm reasonably pleased with how he looks. I agree that the animated version is more spot on for the plot and the film's message, but ever since this movie was announced I was really worried about how he would end up looking in a live action film. I was sure he was going to either look completely retarded or completely repulsive. But they managed to make him look like neither of those things, so I'm okay with it.

I mean, he could have looked something like this...