He's a finess center, very different from the Beast.
Defense:
Good, Vertical Leap
Good, Shot Blocker
Good, Feet (moves them well)
Good, Outlet Pass (most likely the only thing he learned from Goldenstate)
Weak, Rebounder (both in terms of position and muscle)
Weak, Rotations
Offense:
Good, Hands (he caught a pass above the rim with one outstretch arm, and slamed it home ONE handed)
Good, Midrange fadeaway Jumper
Decent, Finisher
Weak, Rotations
Weak, Inside Game (he' tends to take the midrange shot)
Weak, Rebounder (decent positions at times but showed very low will to muscle his way for better position, other times he was not even close to the rim)
He' husstled his heart off out there, he's got talent but he's not the kind of center we saw last year so it will take adjustments especialy on the offensive rebounding side if most of his minutes will be will house/allen that shoots alot from the outside, he will have to become a better positional rebounder as the season goes along.
And he seemed to get tired at the start of the 3rd qtr.
But if this is what we get out of O'bryant the rest of the year, he's allready worth his own contract to the Celtics.