Uosan is a place where you can eat very well, for a very cheap price. Be aware that lots of locals are aware of that, and because you can’t make any reservation, you should come early; the restaurant opens at 4PM and I suggest you come at least half an hour early. Anyway, be ready to wait in line. There are 3 floors available: the first one is reserved for the regulars, so move directly to the second if you are alone/in a couple, or to the third, if you are in group of more than two people. Be aware that you will have to seat directly on the floor on the 3rd floor. There are no menus. All the dishes available are displayed as vertical text on sheets of paper, on the wall. Uoasan is not for kids. This is a place where you eat and drink, period. All this being said, the food is unbelievable — and dirt cheap! For 3 people, with several drinks each and a dozen of dishes, we paid a grand total of less than $ 70 for extremely fresh and well cooked fish :)