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.
I think Maas’ Throne of Glass series balances this well. The first book is a little weak because she was so young when she wrote it but the books after are fun IMO. It felt more fantasy with your typical steamy scenes sprinkled in, but they felt earned. Or I have terrible taste!