Granted he's not young, but this might be a positive. Much less likely to be tempted elsewhere in a couple of years time.
He has tons of European experience. Took 2 similar clubs in Villareal and Malaga into the last 4/8 of the Champions League.
He wasn't good on the young player side at City, but that was probably more to do with club policy. He's obviously a good coach, has got players to over-achieve at smaller clubs.
He also knows the Premier League well.
Have I sold it to you?