I really like it! Of the two sister books, the other being “Regulators” by Stephen King / Richard Bachman, I like this one better. It gets straight into the story, and tells us more about each character. The story is full of twists and turns, and although I haven’t finished it yet, the buildup to the ending is great. If you were to read the books, I’d recommend this one first. I don’t believe it connects to the wider Stephen King universe, though. That’ll be it. There are other worlds than these.