After thinking a bit on it I’ve decided this book is a masterpiece in theory but annoying as hell when it comes to the dislikes. 
It is, in short, weird. 
This book immediately hooks you in with constant jaw-dropping moments. You’ll be terrified, confused, and gasping. I’ve literally never had so many visceral reactions to a book (except maybe the entirety of the Throne of Glass series). It covers some very, very touchy subjects so I appreciated the fact that the author had a note about it in the beginning. It truly is a captivating love story entertained with fantasy, horror, and mystery. The plot is wild and will not make sense until the last 1/3 of the book. Everything had a purpose- from the silly pet names to the depraved, messed up things. It is definitely a trust the process story. I loved the constant twists, the very very layered characters, and how it all eventually tied together.

Now to the dislikes.
It’s a published book and needs a ton of editing. The errors were annoying obvious in the first half of the book. 
The plot was very unpredictable until it wasn’t. The last 1/3 of the book did have some surprises, but I honestly found myself skimming the last 100 pages. And it is a beast of a book at almost 800 pages. I felt disappointed with the ending - even though it is a satisfying ending- because I found myself skimming and bored with the predictability. 
I’m not opposed to smut but holy crow there was a lot. It was almost to the point it was erring on excessive (to me). And it became repetitive. 

It wad a good overall story. I’ll suggest it to others (with tons of trigger warnings) but I don’t see myself rereading it or wanting to purchase a physical copy.