Nice location (North East corner of the Old town). The address is 23 Hang Muoi. This place opens all day, quick and efficient service. This stall is open onto the street so will have traffic noise and dust. If you can look pass this then it is a very good Pho place. The broth is clear, simple but flavorful. The long doughnuts are crisp and perfect for dipping into the broth. I came here for early morning breakfast (I got tire of hotel breakfast buffet). For $2USD I got a steaming bowl of comfort while the street traffic isn't as busy yet.