I have only seen video of him in AAU stuff. Considering his age, he did fairly well. Of course, comparing young AAU footage to college players or trying to project is difficult ... Forgive this odd comment, but he is about the size of Mikic. Or Paris. You can play in a high level competition in AAU and not stink up the joint and still not be able to create on your own. You gain all the buzz from those with whom you play.
Some guys develop a reputation playing against lesser competition... they may have an upside, but never faced good enough competition to force the player in quesiton to elevate the old game.
BM, other than a question about his availability by the time he is ready to declare (too many high comp offers) what do you do? He is the sort of guy that you sign early... like Pato. And, you get what you can get.
Of course, I watched him against Freeman and it wasn' t bad. If I had to name one guy who we are offering and who I think would be a good immediate fit, it would be L. Freeman (right now).