I'm not a fan of the dark romance...particularly when it involves non-consensual sex or BDSM, but I had my reasons for choosing this book.
It took me a while to get into it, but Deliver went from a book I was reluctant to read to a 4.5 star read for me. The first 30-40% of this book was rather hard to read and I had to put it down more than once to take a break from the cringe-worthy details of Josh's forced sex slave training. Then things take a wonderful turn and I couldn't put this book down. Deliver is well-written and had twists that weren't at all predictable. The author made me actually root for Liv's redemption. And for her and Josh to make it to HEA.
I was completely enthralled by this compelling story with complex, multi-layered characters. I never felt bored or like I knew what was coming next. After reading the amount of romance novels I've read, that's hard to find.
My only issue was Liv and Josh's transformation from Mistress/slave to "in love" was a wee bit too fast --insta-love and non-con sex slave will never be synonymous in my mind. I needed Josh to put up some fight or reluctance in the falling in love department as he did in being forced into sex slavery. Alas, somehow it didn't bother me as much as it should have. I have no good reason to explain why that is for you though.
Dare I say that I can give this trope a chance when I'm in the right frame of mind more often and I'll definitely check out more by this author.