This movie gives a bad name to Hayao Miyazaki and Ghibli Studios as a whole. It's plotline is simple and the struggle seems far too easy to overcome. It's an extremely happy-go-lucky story that simply doesn't fit with the typical Ghibli style. It is not only strongly geared toward younger children, but also rather boring at times.
However, as it was directed by Hayao Miyazaki with Joe Hisaishi composing the music, the animation and sound quality are just as good as any other Studio Ghibli movie.
Still, I do not reccomend this movie to anyone who appreciates Ghibli's better works.