I was so not prepared. Gearwise, I am overgeared on my tank.... but jeebus, I was so not prepared. Almost everyone else in the group was new too, but I have not seen a pt fall like the first time I stepped into Twin last week.
On a side note, do you go for the Primal weapons after you complete the quest line for the Primal Ex's? I finally stopped being lazy and started the Primal Ex quests and downed Garuda today. I have been trying to shy away from raiding and force myself to take it easy, but the bug is constantly nibbling at the bit.