When he came in I thought he was a huge upgrade on Ighalo and that he gave us more genuine starting options but I was worried about why he was coming, the fact that he didn't go back to PSG for the Champions League games concerned me that he was more focussed on securing a big, long(ish) term contract and gave up on probably his best chance to win the Champions League to get it.
However he's been terrific in recent games, today has been coming and he already looks really sharp and dynamic which it would have been fair to think might have taken a little longer given his age and the period of time in which he didn't play. You can see how much better United could look with a guy like him starting regularly from now which is promising.