This book, the sixth collection of the series, excelled because it did what I always hoped the series would do... find its own identity apart from the adult series. Previous books had relied heavily on connecting to the goings on of the adult Tribulation Force instead of focusing on the teenagers. This one didn't do that. Also, it didn't fight to keep pace timeline-wise with Assassins, the corresponding book in the adult series. Instead, it really fleshed out the story possibilities of the locust judgment.
Ultimately, it was a very good book with some strong moments. One of the best of the series so far, I think, with a fantastic final scene that, though it ties with the adult series, it is also wholly unique. I look forward to starting the next book in the series.