Verdict: Well. I enjoyed the book. I did. But I took issue with a lot of the elements. Plot, characters, and setting were sufficient for me to be engaged, but just enough. Tense and point of view were often confusing as they shifted without so much as an extra space's warning (at least on the Kindle version). The novel has both steampunk and paranormal elements, and I've been told for a long time that though it's technically not YA, it will still have a large appeal to the YA audience. Which is true. But, make no mistake. This is an adult novel with inappropriate sexual content not suited to the younger set that reads YA. I mean, I enjoyed it, but I'm a thirty-year-old married woman.
Additionally, the world building is a little lacking as it is set in the past, but the rules have shifted and sometimes it's hard to keep track what is shifted and what is true to history. I understand that this argument could be made for many a sci-fi or steampunk novel (and yes, steampunk this most certainly is) but the building in this case was not sufficient for me to understand all of the rules and keep up with the happenings. There were several "huh?" moments where backing up and rereading did not clarify what was going on.
If you're in the mood for a historical paranormal romance with sci-fi/steampunk elements, then dude, this is your series. But you'd better be in a mood for all three of those genres to enjoy it without focusing on its flaws.