This is a kids or young-adult novel, or anyway it's being marketed that way. It's a good one that should be of general interest to all.
I really like that title. It says a lot: I didn't really need to see more than the title to know I was going to want to check this book out. It says "plucky girl" and sets the tone.
And the tone, the voice of the novel is great. It's warm and funny and I could read it all day.
The structure of the book is pretty loose. Given the nature of Fairyland as described here, geography isn't important, giving this a picaresque feel. One could imagine adding any number of extra chapters: the chapters are organized around encounters with various characters of Fairyland. It's an interesting and fun choice and must have made this fun to write. Apparently the book was originally delivered as episodes on the web, which this structure would contribute to.
The general storyline reminded me a lot of Oz, but an Oz that has grown up, gotten some post-modern ideas, and doesn't feel at all dated.
Definitely the sort of book that makes me feel, "Man, I wish I'd written that."