Everton fan here. He's a joy to watch on the ball. His dribbling and close control are top and considering he's not a big guy his strength on the ball is excellent. He does seem to lack that end product/killer instinct infront of goal though.
Watching him he is quite Grealish esq in his play but with a bit more flair. The slight difference is he's not as clever at winning freekicks and doesn't hold up the ball as much as he prefers to run at players instead. Equally comfortable with both feet and either wide right or left.
He's one of our best players with 3 years left on his deal so it seems we will want around £70m for him. He's worth that to us, not sure he's worth that to you. Put him in your team with much better players, I think he will flourish and there is no adapting needed for him.