I stumbled across a copy at the library a few weeks after it came out.  It's quite different from "Heart-Shaped Box", but it's just as good.  I thought it was very touching and had some very unexpected twists.  It wasn't scary like "Heart-Shaped Box", it was more psychological.  I'd even hesitate to call it horror.  Overall, I thought it was excellent and can't wait for his next novel.
I'm not a big Stephen King fan.  I can count the number of his books I've read on one hand.  I had heard a lot of good things about it, but decided not to check it out when I picked it up at the library.  I'm an avid reader, but that tome is HUGE.  Instead, I used an Audible.com credit and listened to it on Audiobook.  At 34.5 hours, it took forever to get through it, but I thought it was very good and the 34.5 hours went very quickly.