I didn't finish this book, I believe I got lost in the way with the amount of details and problems the couple went through. There was a lot of things about this world the author created that she wanted to tell, and the book became longer and longer. It was difficult to pay attention to everything with so many things going on.
Perhaps the story could be divided in two books pretty nicely. I really enjoyed how believable the couple behaved around one another, the dialogue was good.
More conversation and less description, that's what I would've liked to see. The world building was well explored and very interesting.
Review posted here: http://wp.me/p27N1w-1rj