Val Kovalin owns the obsidianbookshelf blog (http://obsidianbookshelf.blogspot.com/) where she reviews m/m romance books. She's also a wonderful author in her own right.
This is how I reviewed her first book, Trinity Trespass, on goodreads:
Demons were freed from Hell by the first atomic bomb launched by J.Robert Oppenheimer at Trinity Site. Since then, they walk the earth among us, lead by their "higher-ups", the cadre, and fought every step of the way by their eternal enemies, the Angels. Demons and angels are connected by a kind of common mind, the Collective, an energy net through which they can sense each other's souls right down to detecting true feelings and lies. Only in New Mexico the Collective isn't as powerful as it is everywhere else; there is a border, set by the Cadre, to create a no-man's-land where neither angels nor demons are supposed to reign.
This is, in short, about the essence of the worldbuilding as I perceived it. A very interesting and unique concept. The author plays on the chords of Catholic lore, giving it some new twists which sometimes remind of "the Exorcist" and sometimes of the Matrix movies. For example, the angels are the bad boys here, since they obviously think they will return to Heaven when their physical body dies no matter what they do. The demons, fearing death since it means their return to Hell, seem to be much keener on balancing good and bad.
Since the worldbuilding is so complicated it was amazing how the author managed to get it across through the thoughts of Parnell, the 3rd person narrator, or through dialogue. Due to this, though, the book was also a bit slow to begin. Even one of the key events which happens early on is almost drowned under the need to get more information across.
Yet, after about one-third of the book, the picture is clear, and Parnell and Navarro take off like rockets. Those two are totally hot together, it was easy to buy the emotional passion which needed frequent release through wild sex (of which there is a lot from the very beginning). There was love and hate precariously balanced between them, underlined by Navarro's fierce loyality and Parnell's desperate need.
The third man, Chavez, remained a bit of a mystery. An angel-demon-hybrid, he's sought after by the Cadre after he has been used by the angels for several years. They suppressed his sexuality completely, and now, let loose, he makes up for lost time with Navarro and Parnell. Both were attracted to him and he to each of them, threatening to trip their power-play. In the end Chavez is still an outsider, but not because Navarro and Parnell make him, but because he simply is what he is.
This book is more about the world and characters than about plot (although there IS plot!). I think the author did a great job, and hope she won't let all that work go to waste by NOT writing a sequel. This cries for one.
An unusual, intriguing fantasy with speedy action and a lot of very passionate sex. Definitely recommended.