M.S.
I have never eaten at a PF Changs, but there is one in Chattanooga now.
2100 Hamilton Place Blvd ###-###-####
Here are the places I have eaten at and would recommend:
China Moon (buffet) [Brainerd area]
Formosa [Hixson]
Buffet King [Chinese & American buffet in Hixson]
Mandarin Garden [I recommend the moo shoo pork]