Haha Dennou Coil... it's really hard to describe actually, since the story goes into a lot of things. Here's the Anime News Network synopsis of it: http://www.animenewsnetwork.com/encyclopedia/anime.php?id=6278

Me friend Tates likes to say it's like Hayao Miyazaki set in the future, which I agree with, so if you like Hayao Miyazaki with an extra dash of wackiness in spots you'll probably like Dennou Coil.