Excellent to hear that, Amberlough!
I'm reading RJ Anderson's ARROW with my girls, who are rather invested in her faery series. The two things that stick out most to me are 1) the feeling of being in a different culture, and 2) Timothy. We've seen Timothy's anxious side in the last book, but now that he's worked through those issues and come out the other side, we're getting a whole new view of him. I love seeing the cheerful, slightly hyper, active side of him--just a very likable character! As to the cultural issue, Rebecca's put her finger on exactly that exhausting feeling of trying to navigate a culture that is similar but different from your own, of misinterpreting people, and of trying to fit into a new set of expectations while all the while holding very much to your integrity. (I guess that's actually two culture clashes, then--the clash between different faery cultures and the clash between the world of integrity and...the World in a religious sense.)