I'm in the camp of being easily disorientated by how similar everything looks. The fact that it's a circle makes it more difficult to me because the symmetry means there's fewer distinctive landmarks I can use to place myself without resorting to pulling open a map or checking a compass. No mountains in the distance or shorelines. Just a lot of curving hallways that look very similar (or one giant circular room).Being able to run through the entire ring without stopping, making any hard turns, or reference to a 'stationary' object in the distance actually makes things blur together in my head without a solid sense of spatial relationship. I might remember that such-and-such is next to so-and-so but not remember if that portion of the ring is in the north? South? East? And does that mean it's clockwise or counterclockwise from wherever I'm currently standing? Eventually I'll start to get the hang of it, but it's going to take much longer than Boralus or Dazar'alor. I still often have to consult the map of Ironforge because I don't remember the order of wards, and I don't even try to get around Undercity without hitting that M key.
Praise jeebuz. Trying to find the fp or crafting section is annoying as hell. Always find myself running around in circles