I like him a lot. Reminds me somewhat of Clay Matthews in his physical build and the way he plays. He's more a football player than just an athlete playing football. Plays with effort, toughness, and has the intangibles to be a playmaker at defensive end on passing downs or SLB in the base D.
His best fit is a 3-4 defense, but since I don't think the Seahawks require as much athleticism at linebacker as other people think, I think he'd do just fine at SLB which really doesn't ask the player to do to much, mostly just play physical, which is him. I don't see him breaking into the 1st round, but if he fell to the late 2nd round I'd be happy with the pick.