That sounds like an amazing experience. I'll have to keep that in mind when I'm watching a new anime or when season 3 starts up.
That last episode was so good though. I really liked how showed the inner conflict in Bertolt and Reiner. It really makes them interesting antagonists. Also the whole thing with Ymir switching sides was cool as well. It was hard to tell what she was going to do until the very end.
RE: Watching Attack on Titans on Magic Mushshrooms - Part 1 (Spoilers)