I have two. The Ritual and Drowning.
The Ritual is pure smut. 61 chapters and every one contains a graphic, demeaning sex scene. I’m convinced the author was an adult film screenwriter and decided to try their hand at writing a novel. There isn’t a single likable character in this book.
Drowning isn’t a great work of literature. I felt that the characters were very two-dimensional. I hated how naive the author made the protagonist. It made me have a lack of sympathy for her. The ending was series finale of Dexter bad.
The Dark Tower (the last book of the Dark Tower). Did nothing to resolve any of the plot points, literally tells us King is about to do some hacky writing, and then still disappoints when the ending not only has no in universe basis but basically contradicts everything we’ve learned up to that point about it.
Terrible end to an otherwise good series.
I respect your opinion, but hard disagree from me. I loved the ending - for the whole series and for the book.
See I couldn’t even make it past The Gunslinger, I found it to be appallingly poorly written.