Stephen King's "Gerald's Game"

I see this discussion is a year old, so you have most likely read the book by now. I read this book about 20 years ago, when it was still fairly new. I found it very creepy. Of course, Stephen King wrote it, so what did I expect? I didn't enjoy it as much as some of his other books. The "companion" book to this (there is a kind of parallel event in both books) is Dolores Claiborne, which I liked much better and have read several times. I can't quite put my finger on what I didn't enjoy about it. It gave me a similar vibe as reading The Girl Who Loved Tom Gordon. Maybe I just found the suspense of not knowing what the "threat" was in both books too nerve-wracking.