Um, I guess it was okay? I'm not too into horror. Never read any King.
The "rules" of this universe didn't seem particularly coherent. I looked at the wiki book synopsis, and that seemed to be more solid, but the movie appears to have somewhat significantly diverged.
Some really good performances though. The sick kid is brilliant.
Also reminded me a lot of
The Goonies in sort of a twisted way.
I dunno...