Obviously thus far he's has been terrible, but the injury seems like a legitimate reason for the suckage. I'm going to hold off labeling him a complete bust until we see him at full strength.
I thought in the pre-season and the early games he was playing good positional basketball. He was making cuts, drawing his man away form the ball (opening up the inside for other team members) and getting himself open. He made some pretty passes, the kind that showed good court vision. If the operation fixes things so that he can hold a basketball again, I expect him to be an asset.