Food - delicious!! I got the vegetable pho (beef broth) and vietnamese iced coffee. I recommend Superior Pho. I will go back, I want to try the tofu banh mi.
Building - look for the building with the red awning. There is no big Superior Pho sign. If you go in the door on Superior, the restaurant is in the back, through the winding hallway.
Parking - go down E 31st St and on the right in a parking lot, behind the building. There is also street parking on Superior Ave E.