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Just beat it a few hours ago the map layout don't help either.
Holy shit @ the Crestholm Channels dungeon. This place is a /maze/. Cindy is trying to get me killed I swear. That's why she was being all apprehensive when she gave me the quest.
Also, dungeons are fun and taxing (in a good, "Wow, I actually did it!" kind of way) when you're not overlevelled.
Just beat it a few hours ago the map layout don't help either.