As the one star rating says: I didn't like it. Having said that it did pick up a little for me around p.1100, perhaps because I could finally see the end.
Quasi-religious crap about as deep as, as, as.... something shallow. I'm so glad I read the extended version in which the characters have been expanded. I particularly liked the dog Kojak.
I had my own reasons outside the book for finishing and without these it's difficult to say whether I would have bothered to crawl, bleeding and broken, to the end. I should really give Mr King the benefit of the doubt though - 1300+ pages carrying an unwilling reader...