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.
Anything from SJM has been a letdown. ACOTAR is mediocre at best (except for maybe the last book) and ToG is plain. Yeah, in ACOTAR you fall in love with the side characters but Feyre is just annoying; can’t say the same for ToG. The CC series goes up and down between the two books.