It was epic. Last night after working on my decks for 2 weeks to really focus in on this quest my group finally defeated the Witch King. We ended up only losing 1 of our 10 heroes because Quest 3B. However it didn't stop us from dropping the Witch King and defeating the quest in 9 rounds.
At the end of the game the threat for each player was:
We drop the witch king in 1 round which was pretty awesome. I just have to say that Boromir is the man. He was the key to beating this quest and not for him it was have been so much more difficult.