I definitely enjoyed this book, but in an uneasy sort of way. Perfidia is a somewhat depressing tale, but a very realistic one, and both an interesting and compelling read.
I found the ending a bit unsatisfying, but that didn't make me dislike it--on the contrary, after a few minutes of thoughtful, somewhat stunned and not-necessarily-happy contemplation, I decided I preferred it that way. Life is like that sometimes, I guess, whether we like it or not.