I know far more about vampires than werewolves, so, apart from the gay content, I was very interested to read this. I knew about silver bullets and the monthly change, but did not know that werewolves were mainly male (very few females), that they mate for life, and that they recognize their mate instantly - or at least according to this author.
I was surprised to find that the author is a woman, as she writes so well about men, but I have to admit that once the 2 main characters got together, the sexual couplings got a bit repetative.
Taking that on board, it's a good read, although being a thriller, there is a (fairly obvious) villain unmasked at the end.