Impressions so far - the book is just kind of okay. I've read a lot of Young Adult (YA) books over the years and although this isn't the best (see Harry Potter or Percy Jackson) it is definitely not one of the worst. I'd plunk it down in the middle. Right now Edward has just introduced Bella to his family and has told her how old both he and his creator actually are (105 and 375 respectively).
There is no Team Edward vs. Team Jacob yet (although Jacob is in the book he is described as a little kid), but I suppose there could be a Team Edward vs. Team Mike Newton, as Mike is a nice guy who Bella describes as the friendliest person she's met in this new town and he seems to like her a lot.
So far I give the book a "Pretty Good" rating. It's not the best, but if you're looking for YA books about vampires, it seems okay.