Please don't stop reading this blog if I say... I didn't think Coraline was very good.
I haven't read the book, and I plan to; I expect to like it. The movie was very pretty and well-put-together, but I thought the plot development was off--that it took a long time for anything exciting to happen, and then when it did, those scenes went way too fast without enough exposition. And not that this is a question of "good" or not, but I didn't think it was that scary, either--not compared to, say, Sleeping Beauty--and neither did the kids in the theater, as far as I could tell.
I did think Teri Hatcher (whom I have liked ever since I saw her in MacGyver; Love Boat is before my time) was fantastic, and the hands-made-out-of-needles were awesome.