We went as a party of four to get a quick lunch at midday on a Monday in February. The place was quiet and uncrowded. It is a self service cafeteria, but there was no line/queue the day we went. We stood while the cook grilled our burgers (one of them a bean-burger). There was a good selection of pickles, cheeses and other fillings to choose from, all fresh and nicely presented. The seating area is light an airy with great views over the Potomac. Afterwards we went for stroll on the large terrace.