Read this aloud with the kids. For a novel with a female protagonist, and a relatively feminist theme, it barely even manages to pass the Bechdel Test. And (very slight spoiler) that female protagonist is saved by a man much more frequently than she manages to save herself. Furthermore, the quality of the writing itself isn't that great—about what you'd expect from a YA novel, I guess.
That said, there were redeeming qualities. Matthew Wood, for instance, is an interesting character, and his relationship with Kit is intriguing. And Kit herself follows a character arc that's not overly predictable or simple. It's not a terrible book, but it's certainly not among the best we've read as a family.