6'6", 295 as a HS junior is a mountain. But 2 thoughts from that video:

(1) He switches between RT and LT pretty seamlessly. That flexibility would be good given the injury troubles we've had lately, trying to put an OL together, etc.
(2) His first step seems to be up, and he blocks with his arms more than driving with his legs. That might work in HS when you're always bigger than the guy opposite you, but in college he is going to have to work on foot technique if he doesn't want to get flagged for holding every play.