I once said when he is on form I would start him against any team in the world. His pace is so frightening and he is a true team player. His general level might not be at the level required but it doesn't matter that much. If all the other aspects of his attacking game like the technical side of things as well as football intelligence was as great as Mata or something that would make him a player with a consistent great all-round game. Not something you see very often in players similar in style. It's rare. It would put him up there with the likes of Bale etc. It's not very realistic to expect. I don't think he'll ever reach that level, I'm just saying theres a lot of ground between those types of players and a championship player. He doesn't need to reach Bale level to be a solid player for us.
His qualities make him the most dangerous man on the pitch when he is on form, and it opens up a lot of space for the players around him. When he isn't on form, not so much. But with the style of player he is, even when not on form he is still a threat in our set up if the team is direct and constantly on the move.
That said, right now he looks exhausted and not very sharp. It will be very interesting to see how he gets on in his second season. If he can kick on then sky is the limit, and if he stays like this it's fine for a squad player, and if he regresses a lot then we'll probably recoup what we paid anyways.