Honestly speakingI’ve a bias: i love Stephen King books! This one was a nice one since there is a bit of Lovecraft as well.
It starts as always very slow takling about the two protagonists and then speeds up in a very fairy tale world. Sometimes it reminds me of the Dark Tower saga , where the worlds are somehow crippled but very vividly described.
I hope The King will put in his next one again a bit of the “Old Ones ” as well.