The book pulled me in faster than any other SK book I've ever read. There was almost no buildup before all hell broke loose, which is atypical for SK. It felt like a stick of dynamite going off to me and I read it in a mad rush.
As far as the movie...eh, it was ok I guess. It held my attention at least but I can't say that it was all that great for sure. I would say it was mediocre and somewhat uninspired.