I think my bias comes from him playing for Kentucky. If he can improve other aspects of his game it will be interesting to see what he becomes.
His PER of 13 is OK, assists and steals and advanced stats are not overly impressive. As the suns improve we'll see how he does with better talent around him.
All that said... I'm a jazz fan. As more time goes on, the more I'd like to have seen these questions answered with him in a jazz uni