Not the worst but not the best. I wouldn't come back. The soup is very single noted, they forcefully add in the mint and toppings which just adds bitter mint flavour to the soup.
On the plus note they are clean, the ambiance is quite hipstery, and they do have an interesting take on Banh Mi with their sliders.
Seriously guys, stop featuring Pho as your main, you should consider the other lesser known vietnamese dishes such as, Banh mi, Fresh rolls, Banh Xeo, Banh Uot, Thiet Kho.
And get your staff to suggest different and memorable food items. Customer service is very sedentary. You get more thank you's at McDonald's.