Stayed here twice in a period of 9 days, with spouse and two kids. We found the rooms clean and quite comfortable, the staff friendly and helpful, and the breakfast in the morning delicious and substantial. Staff let us leave luggage early when we arrived before check-in. They helped us find the address of an Ethiopian restaurant (and its phone numbers), gave us a touristy map, and were consistently cheerful. The kitchen folks kept the breakfast area full of surprisingly tasty (well-seasoned, not wet and runny, good!) scrambled eggs, as well as home fries and sausage links and patties. The fresh fruit selection was fine, not bruised or anything. The make-it-yourself waffle station was a hit with my schoolboy son, and my toddler enjoyed the chance to sample a little bit of everything--but especially the yogurt. Staff did their jobs efficiently and (apparently) cheerfully, which made for a really nice break on our driving trip. I'd stay again.
The Mall and the Smithsonians are perfectly walkable from this spot. We even walked down to the Lincoln Memorial, with 5-yr-old walking and toddler in the stroller. It was really a great chance to introduce the family to some of DC.
(Oh, and we parked 2 blocks away in an open (attended) lot for $8 per day, rather than using the $40 valet parking at the hotel.)