I don't know him as a person, but credit where credit is due, he has entertained millions of people over the years and has done the unthinkable for Irish dancing.
He did admit last night that he might have been an egomaniac, but there again, he must have worked incredibly hard to get where he has. Perhaps we wouldn't like many of the 'stars' if we met them. Putting personalities aside, I thoroughly enjoy watching the dancing, and hope he manages to get through his last tour, his joints must be in a bit of a state!