It's a 4-star rating based on my order: Beef Pho and a cold vietnamnese coffee. The dish was really…read morenice on a cold rainy day, but I couldn't feel the 5-star-awesomeness in taste. Sure, there is nothing better than a hot noodle soup on such a day, but man, to be objective, I couldn't remember the taste. The portion was great, the price was good (11€ +3.5€). The owner/waiter was really nice, atmosphere not too special, since I came for the food.
That's basically it! I would definitely come back for the hot noodle soup, but since I am in the food city of Lyon, I guess I have to try out some more restaurants. But if you're staying for longer time, go for it for sure :)