I eat at Pho 75 all the time - it's also on Route 50 but not to be confused with Pho 50.
I was not aware of the difference between Northern and Southern Pho but that definitely explains why it is so plain in some places.
Occasionally, we have Pho at the place the guy in the pic below owned and ran until a few years ago.
http://i.dailymail.co.uk/i/pix/2013/...24_964x551.jpg