Maybe it's because of the class combo that my brother and I run (Guardian Druid/Aff Lock, respectively), but we've never failed a run. The closest we got was when I got straight stam/tank buffs for 4 floors in a row, but he ended up getting enough damage to make up for it. Just cruised through layer 7 tonight and will clear the rest of the tower tomorrow. Plenty of fun powers (double Darkglare summon, sac stam for haste, covenant ability summons Darkglare, plus loads of stat buffs) to be had to make you feel like a god.

I do feel for the classes who may not have the best powers, and I really hope Blizzard gives you folks some more fun things to play around with, but the place just doesn't seem that hard? Like maybe solo layer 8 can provide a challenge, but when I read about people who wipe on the first room of the first floor, I just think "Are ya...in quest greens son?"