Surprisingly, for a six-book series, it isn't really dense. The books are pretty easy to go through! So, I am excited for the next one! I just have … *mental calculation* four more books to get through before this one! So, I'm hoping to get through them soon!
I agree that it does get so much better. Book 3 is my favorite too. I've reread the series a few times and it never fails to bring out all of the feels. All of them.