oQueue...it's a dream come true for everyone that wants to do something, but can't find someone, or anyone, to do it, specially targetted at people in lower population servers.
I've heard about openRaid, but it had some problems, mainly the fact that you must reserve a time slot somewhere in the week to do something.
With oQueue, it's not sometime later, it's NOW. You queue, you are accepted, you join a x-realm team, and you go to battle when the team leader decides it's ready.
Today, I joined my first Ordos raid. Simple, efficient, fight, kill, achievement and loot, bye ! No need for guild politics, no need for scams or DKP burning, you get what you queue for, no more no less, a chance for success.