Agree about People's Square, but since my bank is located there I must visit every trip to Shanghai.
I still get confused about which exits to use - after 15 -20 years of multiple trips per year.
But then, I even have difficulties at simple , non-transfer stations - I have one supplier near
Caohejing Hi-Tech Park station, with only 4 exits, and I still get confused as to which exit to take, and which direction to walk when I get out.