Talented, yes.
But he's been constantly extremely frustrating, when he is sometimes too determined to run into cul-de-sacs, too eager for the shot, and most importantly, he is stuck into either "short pass" or "make a run for goal" mode, and somehow have problem adapting to the situation on the field when he got the ball at his feet.
In short, poor decision-making on the ball. Not to mention he is still record his first PL assist, and frankly for someone who plays so high up the pitch this tells something not so rosy.
I still see his future lies on left wing if he shows no improvement on the brain part, and his worth is certainly 5-10m for the moment if he's not English.