From what I saw in summer league last season he is a very good FT shooter, a very good mid range shooter, draws a lot of fouls under the basket. He seems to have a chip on his shoulder being picked 50th and wants to prove the doubters wrong.
Flaws: Very skinny (has added bulk since then), looked raw & awkward at times.
The potential is there at 7'1", if he develops a post game he can be a very good C.
I think Casey can also turn him into a very good defender.