Second one of these dropped a 40/40/40 +5 all saves augment on first day of release.
Monk buddy of mine got it. We've been killing there ever since and haven't gotten another one. I have, however, gotten 3 sets of leggings done (zerker/SK/warrior)...
You cannot MQ the armor quests, btw... which sucked because my warrior has Jointed Scale Greaves... so now my shaman has to wait for Embra to drop another mark.