This was a great closing to the series.
I have just finished my second read of the entire series, and loved it every bit as much as the first time. Since all the books are released now (unlike my first time through) I was able to read all 10 books back to back. I think it was a really strong finish, the twist to how things end was great. While I had no idea how things were going to end the first time, reading it the second time I could see signs of what would happen, and it was really neat to see it all setup.
All in all, a great read, and worth going through all 10 books!