I figured I'd start this as I completed today at level 60 with Bramble, Zurk, Nub Nub and Yorick. No runes on my heroes except for Yorick, who had one improved bulwark rune. This dungeon seemed a lot easier than the one the previous two days. The most difficult aspect was that my entire team stayed chilled for the whole run, except Nub Nub, so they couldn't use any special abilities other than on floor 1. I needed to use 3 friends on the boss fight to finish the battle. While I struggled a bit at level 60, I'm guessing it will be a cakewalk for level 65's and above.
Unfortunately I was only rewarded with a common, one star Greater Aegis rune.