I'm not entirely sure how I feel about this one. I think that the concept was interesting, but part of it was a bit extra and another part was underdone.
I honestly feel bad for the author. If this came out and/or if I read this before A Court of Thorns and Roses, I would have liked it a lot more. Unfortunately, it felt like reading ACoTaR all over again with little differences. One thing I will say is that the writing was beautiful.