Standing a tall 7'2 with intriguing athleticism to boot, Mbao (Unranked by Rivals, Scout, and ESPN) definitely passes the initial look test for a basketball prospect, even with his skinny frame that could use quite a few more pounds. He's very long and fairly mobile, though he doesn't seem to be at his physical peak just yet, lacking in coordination, conditioning, and quickness, all of which could improve over time, though.
Looking at his actual game, Mbao is clearly still a work in progress, not being able to consistently contribute much on the offensive end. He relies heavily on an awkward turnaround jumper in the post, which he actually hit a handful of times this weekend, but he struggles to get post positioning, he's not especially quick with his moves, and he doesn't show great awareness in choosing his moves. When trying to go to counter-moves, you see the game slow down dramatically for him, and it's easy to see his effectiveness dropping when guarded by more formidable opponents.
Aside from flashes of post moves, Mbao gets some boards due to his size, but doesn't show great pursuit, and doesn't really fight especially hard in crowds. He also doesn't show the ability to power up much around the rim, mostly relying on finesse moves despite being half a foot taller than most of his competition. On the defensive end, he actually shows decent timing on his blocks in the lane without drawing fouls, though doesn't show great range in rotating over.
Clearly still a work in progress, Mbao might need some time to develop, but should wind up on a high major somewhere due to his excellent size and potential.