I haven't watched any games of his, so I can't comment on that, but stats/measurements-wise he fits right as a kind of blend between George Hill, Avery Bradley, and Victor Oladipo. He has the longest wingspan of the group, though the shortest vertical reach (not much difference on this). He's exactly the same height as George Hill. He's not as good a 3-pt shooter as George Hill was at this stage, but he's the best FT shooter in the group. As a jumper, he fits right in with Oladipo at the top of the group; as he does with his weight.
George Hill averaged slightly more assists to this point of his career, though Hill's higher average here (and as a scorer) might be due to playing at a small-time program.
So the questions really seem to be: can he be as good a defender as these others (and he seems to at least have the potential to hang with them in this area), and can he, like Hill, learn to become a competent floor leader, if not a traditional high-assist PG?
Answers to the last one, particularly, will probably determine both his draft position and his NBA success.