Well trading down aside, I like Leonard. He's a very good athlete and a legit 7 footer. He definitely has the potential to be a starter in the NBA at some point. So if your betting on the future, then he's a nice pickup. At the moment he's a little rough around the edges, but capable of logging some minutes off the bench. He does have some skills. He has a nice 15 foot jumper, and has a hookshot with either hand. But his footwork needs improving, and he needs to add muscle. He did block almost 2 shots a game, so he has the ability to intimidate around the basket.
I don't want to make him sound better than he is. He's mostly potential because of his athleticism and length. And while he has some skills, he's also very raw.