I think the Cavs did about as well as they could have. It's certainly more than the Pacers got for George.
More than the Bulls got for Butler, too.
I'm not a fan of IT3, but I like the Cleveland side. Crowder is a solid defender and has turned into an above average shooter, plus his contract might be the best in the NBA. IT3 is awful defensively, but Kyrie wasn't much better, and IT3 is more efficient and less prone to iso ball. Zizic is a wild card, and the Brooklyn pick gives Cleveland either a future asset or a trade chip (HOT TAKE: Love/Shumpert/Brooklyn 1st for AD?).
One huge caveat is that Brad Stevens is a far better coach than Ty Lue, and Stevens constructed an offense that utilized IT3 to his max ability.