The staff has 0 idea about gluten or celiac but most pho is safe (make sure your don’t get any meat balls, fish balls, or fried stuff).
I have tested the beef pho and chicken pho with my Nima sensor and both came back gluten free.
I have also tested their daikon/taro rice cakes and those came back as containing gluten.
I’ve been here a couple times with no issues. You just have to know what to avoid (everything fried, I suggest just sticking with the pho).
— Not very
— Not Much
— Good