Oh, I don't expect everyone to love him. Especially if they're used to Tennant, Eccleston, and the recent Doctor takes.
Me, I'm old school. Like, REALLY old school. I cut my Who milk teeth on Tom Baker, Colin Baker, and Peter Davison. So the whole love triangle bits always left me a bit "meh." I'm sure Matt Smith will have his due, and soon everyone will be sad he's leaving as well.
There's still plenty of time to get used to him as the Doctor. Heh. Every time there's a new change there's always going to be someone saying, "I refuse to watch! He's not MY Doctor!" But people will watch the show regardless, just to see what happens. I refuse to watch when it gets too corny, but I tell you what: The Weeping Angels and the Beast episodes scared me - and that never happens with me and Dr. Who. So I guess I liked that new take. So far it seems written well (or at least better than what I've been used to seeing in the past).