I don't necessarily agree with Bobbo's stance on Brow, but he's still a bit overrated as it relates to his current production. He's pretty poor at defending the PnR and his rim protection numbers are meh.
Among top 15 shot blockers:
He's 2nd to last in efficiency and last, when adjusted for minutes, in the amount of shots he's contesting at the rim. Part of that is due to playing next to Asik but it's also a result of him often being a half second late in recognizing plays. He's almost certain to improve on that, but he's not there yet.