I've been farming this like mad as well. It is possible to be run with DK+4 Ret paladin solo, but I still tend to bring extra people to make it more smooth.
Typical drop rated for me have been 2-3 epics per 3 full clears.
The aoe pulls are SUPER easy with 4 Ret paladins because divine storm spam heals incredibly well, especially with the 50% buff to damage 4.0.6 gave it.
I may not farm as much as other people, but I've gotten my guild about 15 pieces from there, and made about 150k gold from the other peices that have dropped in the past week or so.
As of now, I've seen everythign drop about 4-5 times, except that throwing axe. (which has never dropped)
