For the last book, it was definitely a strong one. There's so much going on and we get characters from previous books that help make it happen. I liked seeing (reading) Tina, Grant, Anastasia, and Rick again. Old times. How this stands in regards to the rest of the series, is it is one of the better books. This one and Low Midnight, help make up for the lackluster (IMO) books 11 and 12.
A few things kept this from being a 5 star read for me. The first was the lack of page time for Kitty's pack. The other being a certain event was foreshadowed and I had hoped it wouldn't happen. It felt too convenient. ("It gives you a year and a day.")