A breath of fresh air for sure,and something he definitely needed.
He is doing very well,and i suspect he much prefers playing in this team than ours as the set up is made for his presence.
He can express himself,and play to his strengths,in the comfort he has 7 defenders to cover his shortcomings,a luxury he doesn't get in our team and hence why his lack of control,and ball retention,often causes issues in respect of the opposition breaking.
Best player? No - Stones,Shaw and Maguire have all been better.
As for coming back and tearing it up here.....as long as Pep favours possession based/technical football,then he will still look something of a fish out of water.