Haven't been to too many Vietnamese restaurants, so this review is from the "average joe" perspective.
Walked in about an hour before closing, there's a sign that says to wait to be seated, but you really just seat yourself and the waitress comes to you. The menu is very simple to read, with nice big pictures that show what your ordering. The prices are very cheap compared to some other places I've been to, but the quality was the same, if not better. My total came to around $7.50.
I ordered the Beef and Broccoli. The food was great! The broccoli was crisp, yet soft at the same time and the beef was cooked to perfection.
Overall, don't expect too much. It's not a five star, fancy restaurant, but a good mom-and-pop family owned restaurant. Will most likely be coming back in the near future.