Story: The story for FLCL is completely insane and for the most part pointless not bad mind you but mostly a background thing.
Animation: The animation is nearly impossible to falt especially with the HD streaming from Netflix I recently watched it in. The only thing I can falt it for is sometimes it gets a little confusing and clustery but with this series it comes with the territory.
Sound: The Pillows did the music for this show and they did a good job. The music is very fitting but may get a bit repetitive for some people since they do tend to use the same song over and over again but for me it wasn't a big deal.
Characters: The characters are immediatly likeable just because how goofy they all are but being the length and nature of the show there's nearly no character development.
Overall: Overall FLCL can be sumed up as crack in six episode.