He's a bad offensive player..his only skill is catching and finishing..can't create for himself, can't pass, can't shoot..similar to Biyombo and others of that nature, reliant on others to create for him..
Defensively, he has a major problem with fouling..overall, though, he grades really well in virtually all defensive metrics, both team and individual..
He's coming off by far his most productive per-minute season in the NBA, though..it's also encouraging that the other team interested in his services was the other(along with SA) premiere front office in the league (GS)