I read that a cleric soloed AoW. (Yeah, after spawning and soloing a Statue and Idol). It took just over 40 minutes. 900K hp.
I remember toes to the wall, eyes down, counting and hitting my mini-CH again and again when NO did AoW, and then us, and holy cow. I don't miss the toes to the wall thing, not at all, or the CH chains. I do miss some folks, though.