My Guild is currently farming Gruul and working on Magtheridon. We went into the Eye last night and had a blast. Trash wasn't a huge issue (although a slow clear as we were getting used to it) and we got 4 solid attempts on Void Reaver.
In my opinion, the fight is entirely doable for us. DPS was high enough to kill him before enrage, but we had problems with people getting nuked by the orbs. Either people didn't move fast enough, or they over compensated and spent all their time running. I know at least once I ran away from one orb and ended up running into another one.
I also noticed this is not a pet friendly fight.
