Fast-paced and unpredictable, each episode leaves one breathless with anticipation. You can watch this for hours and not even think of eating or sleeping. Everything is so rich in imagery and emotion that it's like actually going on an adventure with Miaka and the gang. There are a lot of insanely funny moments too. The admirable part is, everyone is developed very well and it doesn't get confusing.
Characterization is very deep.
They can make you laugh, cry, and feel so many things. Even the bad guys aren't all bad. FY immerses us in a whole new world with its own people, culture, and environment. The settings are amazingly detailed. With regards to the visual aspect, FY is exquisitely drawn and animated.