I'm no mix tape expert, but there were impressive aspects of that video. Most impressive to me were: 1) grabbing a lose ball and going straight up to dunk (around 1:30) - that's really tough to do as a guard, 2) his body control on the finishes in the lane, 3) finishing with the left hand a couple times, 4) his 3 point shot (good form).
I also noted all of those. his lateral quickness and explosiveness is impressive for a high school kid that is relatively unheralded.