This is probably one of the most random anime I've ever seen. Admittedly, I understood none of it. It doesn't mean that I didn't enjoy the anime, I did. I just had a hard time grasping what it's all about. I even googled it and still came up with zero explanation.
Towards the end I gained more questions rather than answers. Some of the things that I am sure of is that, the soundtrack is awesome and that Furi Kuri has a quirky contemporary charm about it.
That's all I really have to say but MAL is forcing me to write a longer review so I'll just pretend to write "quality content" by typing in whatever until it lets me post my short review regarding FLCL.