I'm glad to say that I finally finished this series, but unfortunately, I think that it is extremely over hyped.
I wasn't too fond of the sudden turn to an overall militaristic theme. It reminded me of the book series I read when I was younger, Maximum Ride. How after the story is obviously exhausted, the books continue coming out, turning to the characters doing random and irrelevant things, such as helping penguins in Antarctica (seriously)
I didn't like the ending either, as the main character does a complete 180 and ends up doing all the things she said she would never do, that she constantly preached against throughout the other two books.
I'll probably never reread this series, but I'm glad I at least found out what everybody else is so crazy over.