Really good for a tv movie, well worth a watch if you like Stephen King. I saw it many years ago and needed to see it again. Sure there's some low budget production going on, but you can look past that as the concept is great.
Not a bad made-for-TV version of King's novella from the "Four-past-midnight" collection.
Good character development and casting and a screenplay that remains largely faithful to the original material. Nice special effects although obviously digitised (it was made in the infancy of CGI so be a little forgiving of this).
That said, it's best suited for non-readers or those who "wait until the movie comes out". Still - it's worth a watch (provided you have the time or are willing to split it over a couple of nights)