Overall, Bennett has an engaging voice and while I could certainly see a lot of people enjoying this, unfortunately it didn't really work for me.
Plot synopsis: When her supposedly dead parents -- rumored to have murdered several magicians 7 years before -- show up on the evening news, Arcadia has two weeks to clear her parents' names before they -- or she -- are killed by the Luxe Order. She drafts Lon, a demonologist, to help her find the demon who knows who the real murderer is.
The world building features magicians, Earthside demons -- demons who are native to Earth and coexist with full humans, who don't know about the magical creatures among them, and Aetheric demons who have to be summoned to come to Earth. There's a lot of exposition at the beginning, but it's pretty smoothly done.
The plot starts off well paced, fast during action scenes and slower during relationship-building scenes. Then, Cady and Lon start flirting and it gets a little weird... Like when Cady, who has about a week left to save her parents' lives and knows that people are actively trying to kill her, decides to take Lon's teenage son on a not-date to see a movie. How is that a good idea? By the end, I was still waiting for them to do some actual investigative work; the way they got the answers they needed made me really want to re-read Diana Rowland or Linda Robertson or something more substantial.
The characters are, hmm... I liked Jupe (Lon's son) and I kind of like Lon, but Cady sometimes did things that didn't make sense to me. The secondary characters were a little weird sometimes too, although I did like Riley (she plays a villain, but she's pretty entertaining and far more astute than Cady). Anyway, problems I had...
1) Kar Yee, Cady's business partner and best friend since college, supposedly got US citizenship by getting married (and subsequently divorced) while in the US on a student visa. I'm sorry, but that timeline and sequence of events doesn't really make sense. It's not a major thing, but it was one of many huh? moments that pulled me out of the story.
2) Cady is strangely antagonistic toward Lon at their first meeting, when she has to ask for a great deal of help from him on a very short timeline. Later, after he drugs her and gets her to reveal secrets about herself that could get her killed, she becomes strangely subservient. Not in a "he has secrets about me that could destroy my life so I need to make nice" sort of way but in a "he's hot so I can trust this guy I met two days ago" sort of way. I mean, I know everyone has different triggers, but I generally have a pretty long fuse and even I'd be tempted to go all WWE Smackdown on a guy who drugged me, even if I did need his help. (Not that I think that would have been a good tactical decision, but she didn't seem at all upset.)
3) I like romance in my UF, don't get me wrong, but Lon is in his 40s and Cady is mid-20s. A twenty year experience gap is no small thing and Cady isn't exactly the most mature 25 year old I've ever encountered. (On the other hand, if there'd been a 200 year age difference, I wouldn't have blinked, so ... *shrug*)
4) When Cady and Lon were in scenes together I kind of wanted to smack them both in the head and tell them to focus. Imminent danger, remember?
There was other stuff that bugged me too, but you get the point. I kind of wish there hadn't been a love interest, since that's when everything in the story really started to go sideways for me.