The jury is still out on him. He has some talent, can score some goals and hand out some assists; but he doesn't seem to do anything particular at an elite level. He's not a world class dribbler, he's not the fastest guy, he doesn't have the strongest of shots, he isn't a deadly finisher, he's not a true playmaker, he's not a threat on set pieces.
He does a lot of things well but he isn't special at anything, what could set him apart is if he proves to be a big game player, his first chance to prove this on the CL final wasn't a good start though.