I have a hard time judging this because apparently there is no normal audiobook for this so I listened to the "Graphic Audio" instead.
It's bad. Really really bad. I've tried Graphic Audio before and hated it and this was no different.
I rate the Graphic Audio experience 1 or maybe very low 2 stars.
It's a huge mess.
The Graphic Audio badly exacerbates sentimental scenes by overlaying the worst mood music. Instead of supporting the scenes, the soundscape stultifies them and makes them sound like they deserve this.
In many places, the stock soundscapes don't fit the scenes at all. As an example, at the climax, there is a fight between a hand full of people. There are a few handguns involved and some hand to hand but the soundscape sounds like D-Day with explosions, cries of pain, and constant machinegun fire in the background. It makes it almost impossible to take anything seriously.
Another example is unsettling psycho-thriller music in the background of romantic scenes. It's supposed to emphasize the unsettling nature of the mate bond attraction but it just ruins the entire romantic buildup instead.
The voice actors overact almost everything. There is a scene where the FMC works in the garden and the scene is quite long. And the entire time it sounds like an asthmatic fat chick tries to dig a grave in the background.
A werewolf is disgruntled? He growls like he is about to rip everyone in reach to shreds.
The MC has a headache? She makes noises like someone is amputating her foot.
All scenes involving arousal are so comically bad, even the acting in bad porn is far better.
I get what they are trying to do. It's in their tag line after all. "A movie in your head". These Graphic Audio thingies try to assign some kind of noise to every action or interaction. But that's not how this works! Just as an example, you just can't hear someone grimacing. There is no grimacing noise.
I rely on the narration (which is totally fine btw) to provide the visuals and all this contrived stuff just distracts and destroys my immersion instead of helping it. It's not that I can't appreciate a soundscape. I can totally see a Graphic Novel like that working great for me but the audio needs to sound more like an actual audio track from a movie. You just can't replace visuals with noises. If you are not able to visualize the narration, no amount of audio can help you. The audio can only ever play a supporting role.

Onto the book itself.
It has the unfortunate habit of cutting out of interesting or tense scenes and then the protagonist summarizes them to the reader afterward.
This happens with some fight scenes and with all sex scenes and I think I would've been really frustrated by it normally. But the Graphic Audio of these scenes was so comically bad that I was relieved that I didn't have to suffer through them in their entirety.

I have a minor nitpick I have to mention. The word choice of the child is completely off. That is not how children talk. An actual child voice actor says those lines (very cool!) which makes that even more obvious.

In general, this book is just unoriginal tbh. It's the typical werewolf life mate PNR template with a clichée baddy, a special snowflake MC, and evil powers stirring etc.
Within the bounds of this hackneyed template and its stereotypes, it's an enjoyable read. It's nothing special and doesn't have any of the usual steaming smut but as a light read on the side it's not bad.
I think you can do far better for every aspect of PNR with other books though.
I guess I should go easy on this book with the same old PNR accusation as it was published in 2004. At the time this was probably the cream of the crop of the genre.

I have to say though, I am not very confident in my judgment because of the entire Graphic Audio thing and it being so incredibly bad. ( )

This is a reread and I find myself giving an extra star, because I still like the story, maybe even more than the first time I have read it. I like Lily and I like that she really is different. No damsel in distress but a cop who stands her ground. Going to go with this series for my next serial reading. Mjum! ( )

Someone will love the heck out of this book. Just not moi. ( )

Anyone who can write a scene where a cat stands up to a werewolf (Lupi) has won my heart over. That's just one of the amazing scenes in this book that had me giggling. Not to mention that amazing world building. ( )

Lily Yu es una detective de policía de San Francisco que investiga una serie de macabros asesinatos que parecen ser obra de un hombre-lobo. Para dar caza al asesino, debe infiltrarse en los clanes. Sólo hay un hombre que puede ayudarla; un hombre-lobo llamado Rule Turner, un príncipe de los lupi, cuya carismática presencia perturba a Lily. Rule tiene sus propios motivos para ayudar en la investigación; motivos que no desea compartir con Lily. La lógica y el honor exigen que ella guarde las distancias, pero la atracción entre ellos es inmediata y devastadora, y va más allá de la razón humana. Ahora, mientras tiene lugar una carrera para eludir el mal, Lily se encuentra en un territorio desconocido, siendo puesta a prueba como nunca antes lo había sido, y con un hombre en el que no está segura de poder confiar...