As much as I love studio Ghibli, this is a clear cut children's film intended for children. The animation is still quite excellent at points and there are some good visuals, but there really isn't an edge it lacks a lot of substance. I'm not saying its a bad movie I'm saying its for kids, if you're looking for the heavy smart political and philosophical contexts that were present in Princess Mononoke and Howl's Moving Castle, you will not find them here.
Clarification: Spirited Away was a kids movie that I thought appealed to all age groups, as opposed to this one which may only appeal to kids.