This book was a pleasant surprise. I picked it up this summer on a whim because the cover was pretty and the synopsis sounded intriguing. But I literally knew nothing else about it. And if my previous track record is anything to go by, these kinds of impulse buys don't always work out for me. (See Aftertime as a specific, disappointing example.) 
 But I really enjoyed this book. For the first 2/3 or so I was practically giddy with all the ups and downs and characters and worldbuilding. I will admit that things sort of dropped off, enjoyment wise in the last 1/3 of the book. 
 (view spoiler)[I feel like Jarra's total mental breakdown was jarring and bizarre? I mean, I understand how it could have happened, but I literally spent that whole part going, "Oh honey, this is super unhealthy, you are not dealing with this at all." And I liked "JMK" less than actual Jarra. So. Also, I liked Fian less through this part too, which was super disappointing. I knew he wasn't going to abandon Jarra after he found out her secret, because he'd been set up as the nice guy. But sorry, regardless of her upholding their Twoing contract, he really should have helped her see a psychologist. Because hello. Not healthy. And it was really a shame that after all that set up, Jarra's big "identity reveal" happened off camera the way it did. That was anti-climatic. (hide spoiler)] 
 Regardless of my problems with the novel, it was still fun and an enjoyable read. And there's so much subtle worldbuilding done that I want to dig into.