The Outlaw Demon Wails, book 6 of Kim Harrison's Hollows series, was a very fun read. I'm afraid I whipped through it in one day. Granted, it was a day that involved a fair amount of waiting here and there, then collapsing at home to recover, which gave me lots of time to read.
I liked Rachel much better in this book than in the others. She has grown up a bit, and that's encouraging. While there's a big plot question left to answer, it felt a little bit like Harrison is almost done with this series. I hope that she does come back and wind up that last detail, at least. Even if Rachel goes on to live happily (in the) ever after at some point, the world itself is so rich that I would think there are many other stories to be told.
If you've read the other books in the series, you definitely want to read this one. If you haven't, catch up first! I have read them, and I got a wee bit lost regarding some references to past events (due to a bad memory and fibro fog on my part, not any fault of Ms. Harrison's).