I'm about a quarter of the way through it right now actually. I've always heard great things about it but the 100+ episodes makes it kinda daunting. Nevertheless I'm enjoying it and will slowly work my way through as many as I can :P
I started watching Angel Beats when it first aired because of the gorgeous visuals, but I dropped it (or rather, postponed it) after a few episodes. I've already seen some major spoilers by just wandering around on Youtube. I don't know if I'll ever complete it since I have heard good things about it.
Have you seen Shingeki no Kyojin (Attack on Titan)? It's currently airing.