Have to see him on his HS team because from what I understand he plays inside at the 4 for them. When I saw him twice over the summer in AAU, I was a little disappointed that he lacked the fundamentals of how to use his length and athleticism to rebound in traffic. The only time he grabbed a board was if the ball came directly to him. As far as shot blocking, it was hard to judge because he mainly guarded out on the perimeter, but he did cause a lot of problems with his length, creating turnovers with steals and deflecting passes.
At the USA Camp back in June he measured in at 6'6, 180, 6'11 wingspan. He's still only 16 years old so obviously he'll fill out some more over the next few years. I'll be really intrigued if he eventually becomes 6'8. At 6'6, I just view him more as a luxury than need at this point.