He is not a competitive player... he is often very lackadasical. He seems like kind of an easy going, goofy guy, and he does not change at all when he steps on the court. His athleticism can certainly be viewed as intimidating, but his personality is anything but. I do not think he will be a very good NBA players because... hate to label him, especially early in his career, but... soft.
I hope he proves me wrong because when he is on his game he is a joy to watch. Unfortunately, I have seen too many games where he is not.