This book actually struck me more as a heist book than a romance (in spite of the large number of *ahem* romantic interludes). It's not unusual for Charles to stray rather close to the lines between genres; she's mentioned before that a Romance used to be the sort of tale of "romantic" adventure that Alonzo Quixana spent too much time reading before he decided to become Don Quixote, and my absolute favorite of her series was the one that one of the professional journals said got too bogged down in politics. But in this instance in particular, what keeps the pages turning is the intrigue as Alec and Jerry set up the robbery. And there are limits to how much I can say without spoilers, but midway through the book there's a giant reveal which I wasn't entirely sure was playing fair in a romance novel, but in a heist movie I'd expect nothing less.
Then there are those "romantic interludes." There is a lot of sex in this book, and what's amazing about it is the communication. Alec has very specific fantasies about what he wants in bed, and so far the people who are interested in giving it to him haven't been particularly nice about it. Jerry isn't exactly what you'd call "nice" in general, but when it comes to sex, he's very clear on making sure he doesn't take any advantage that wasn't freely offered to him. As usual, Charles has produced some of the best illustrative arguments against the notion that explicit consent interferes with sexiness in romance today.
As a nice bonus, and another topic that I won't say too much about, there are some nice Easter eggs for Charles's returning fans. Those who have read her Sins of the Cities and Society of Gentlemen series will recognize some familiar faces and some familiar family names.
I don't know which of KJ Charles's series I should hope we get more of next.
Overall: A