I didn't vote because there isn't a third option of yes and no. Yes I do like that extra content was added and personally I don't have a problem with the nerfs everyone has, that said I also have to say no due to the graphics bug and the quest bugs which occurred in areas that worked fine originally. As for the nightmare…
Is it possible that in order to get this achievement you have to completely go over the entire map, as well as do the skirmish and both the standard and epic version of the dungeon?