I love the deal.
The gamble is with his health, not his talent. That gamble is real, obviously, as he's never had a good stretch of health in his 3 years.
But if he can get health and stay healthy, he's an elite rebounder, shot blocker, and finisher around the rim and has shown that he's got the passing gene that makes everyone around him better.
If the health gamble pays off, there's a a chance he turns into the best contract in the NBA. If not...