I didn't see many shots in that vid, if any, that will translate into quality NBA shots. He looks too slow for the NBA to me. Most of those drives would be shut down at the first step, and most threes would be tightly contested. He'll probably be way too slow back peddling on defense as well. Wes Mathews was able to body up and play close to overcome great first steps. That's not something very many NBA players can do on the wing.
It looks like he has a great shot. I was also impressed with his ability to turn difficult positions into make-able shots. He was crafty at times. I just don't see most of it working against faster, taller, more athletic, older players. I hope I'm wrong. Let's see how it goes.