Must say, at the moment, while I'm still getting used to the New Doc, I keep thinking "he's doing an excellent job of being David Tennant"...as in, same inflections and things like that which just remind me a lot of the most recent Doc. :-)
But I do like him already, despite myself. His initial meeting with Amy was just too cute. He is a bit daft though, and comes out with odd little comments...but, so far so good. :-)