As far as Stephen King adaptations go, it's not the worst, but it's certainly not the best either.

Just as the book, the show starts out strong, and then becomes less engaging the longer it goes.

They have changed a few things around here and there, but nothing huge really, and I would probably have enjoyed this show quite a lot, if it wasn't for one glaring issue, the character of Holly Gibney.

Holly is one of my favourite characters Stephen King has created in quite a while, and I knew going in that there was going to have to be changes when adapting her to this show, because for one, in the book she has the benefit of being built up and fleshed out in 3 previous books, so a lot of her quirks and character traits you came to know naturally over the course of time when reading the books, they obviously can't do that in this show, so a lot of them just had to go, and I can live with that, what I can't live with is how badly acted she was. It was really tough to sit through her extremely cliché line delivery, that stop and start way of talking that's been done to death, for me she very nearly ruined the show.

In the end there is more positive than negative, and if you think you would enjoy a murder mystery with supernatural overtones, then you will probably have a decent time with this show, it's well produced, mostly well acted by the main cast, with the aforementioned exception, and it has a pretty interesting premise.