He has improved a lot this season (well he had to really) but I agree that as a creative player he is no Dusan Tadic and we have to get a better starting #10 than him surely.
He's a nice player to watch at times, with good ball control and a few tricks. But he can't shoot, can't pick a pass through the middle, can't take on defenders at pace, doesn't whip the ball in to danger areas. He just sort of loiters around the opposition box. He also tends to disappear from games for large periods of time. He will simply never terrorise a Premier League-quality defender.
I don't mind having him in the squad, but he needs to fall down the pecking order by at least two places.