|Halls of Loot? Or not.|
In soviet Halls of Reflection, the mobs pull you
This instance is quite short, but the timed event during the first encounter makes this last for quite a bit, but at least there's no pulling required. All monsters will come to you!
|At least the Lich King's here!|
However, these adds spawn so fast you don't even have time to loot them, so wait until the first boss is dead to save some time.
Battered Hilt is about the only reason you should visit this instance, and then too only in Heroic mode. If you're not geared enough to tackle this instance in heroic mode, then you should really farm somewhere else.
AOE looting will help in this instance too, so when the next patch is closer, I will be creating a compilation post of all instances that are super profitable to farm with AOE looting on. Stay tuned, the patch is not far away!