Based on other reviews here plus it was close to our hotel (ie 0.5 mi), I decided to visit this restaurant and order out to take the food back with me. Also, let me say that my ethnic background makes me very well acquainted with Vietnamese food.
Perhaps this restaurant is known for its pho, which I did not order because it doesn't taste as good when ordering out. Instead I opted for goi cuon (summer/spring rolls), bun (rice vermicelli with pork and egg rolls) and com (rice with pork). The goi cuon were large and while not the best, were quite good. No issues there. The problem is with the other two dishes which used the same kind of pork. The pork is usually a rich, dark color from the caramelization of the sugars as it is grilled. In this case, it was more of a grey/light brown and the lack of flavor in it hurt both dishes. The bun also contained egg rolls which were big and pretty good but the nuoc mam seasoning that you apply to the bun and rice didn't have the usual flavorings.
I normally would not have gone to this restaurant as we'd normally visit the ones further east on Arlington. If you're willing to make the drive, then those are the ones I'd recommend to those looking for authentic Vietnamese food.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.