I don't think we should get carried away he's still got a mistake in him and his distribution needs a lot of work.
However, he's definitely good enough for this level and with time and experience he can only push on and become better and more assured. I don't want him replaced at all, but he's not a world beater yet.
Similar, but on a different level, to De Gea in his first season at Man Utd. Obvious potential but there's gonna be a few major errors before he gets that consistency.