It has a decent storyline, but the progression is almost too rapid due to its short length. The book is intended for a younger audience with less attention to detail. Several inaccuracies and inconsistencies. It is laced with overwhelming positivity and happy endings like any other Disney production. However, it displayed an interesting subtle racism here and there that is not seen in today's Disney.
A very interesting adventure story! It also involves some emotions intrigues as well, but imagine this, a common old airplane that not only flies, but also sails ^_^ Anyway, I heard this book already has a movie version long time ago.