Shadow8 on 27 May 2016
Personally the one I feel is the most underrated is Serial Experiments Lain. Not many people know about it(there are some here that do though) because it's pretty old(1998) and the story is a little complex. It's not really hard to understand what goes on, but some things are a little cryptic and you have to figure it out on your own. With only 12 episodes, it sure was one hell of a ride for me, especially considering it was one of my first animes outside long running shonens and a big reason why I'm an avid anime watcher today. Visuals also hold up extremely well.
