All the characters are very well written. Piper is a bull-hearted, little lady who fights what she has been told, and does whatever she believes in, whether someone tells her to or not. I think flying power suits Piper as she is a free soul, very much like birds on the wing, as well that each super power completely matches each person.
I love how there is no romance in this novel, because it would change the storyline and ruin it completely. I think this book is pretty good for people between the ages of 8-11, and the parents of younger kids, as this is a very enjoyable book for everyone, including me!
Over all, this book is good, very good, for everyone!