Boom or bust guy.
He should be able to contribute on defense right away (blocking shots, P/R defense), but he'll give up low post position to other centers. If he adds low post strength over the next few years, he could be really great on the defensive end.
Offensively, I'm not sure what his potential is. He seems to lack even a simple jump hook right now, but he can obviously finish very well on put backs, lobs, and in the P/R. Again, if he adds lower body strength that will allow him to establish low post position, then he might be able to score with ease even if he doesn't have a super polished game.
Potential is maybe along the lines of Hibbert? Floor is a 4th big you give 10-15 minutes for defensive purposes.