Stay with Kay - Pentagon City was fantastic! The location was perfect, right in the heart of Pentagon City near the metro, Whole Foods Store, Costco, Great Restaurants, Arlington and Downtown Washington DC. Definitely the best bang for your buck in the area! The rooms were quite comfortable. Plenty of space for 5 adults. The beds were very comfortable and there's a full kitchen, washer/dryer, and balcony.
The only adjustments that would have made our stay better...wine glasses and a bottle opener. Also - some extra rolls of toilet paper in the bathroom would be greatly appreciated.