I can't recommend Nora's apartment enough! Spacious, clean, comfortable. The beds were great, the location awesome. I didn't know much about Dupont Circle - my stay was mostly focused on 5 days of museum visits and an event at the Kennedy Center - but having so much locally was a treat. The restaurants, the metro (yes it is a 5 min walk!), nearby stores, the action around the circle, the art displays from the Dupont Underground, and the Sunday Farmer's ,market - the latter certainly not to be missed!
As mentioned in the comments, there is the pitter patter of any normal household with children, getting ready for the day - we found that delightful and not annoying at all. The only other thing to be aware of is the lack of thermostat controls (they are in the main unit) although comfort levels can be adjusted by manually opening/closing the vents - and Nora had everything set just right.
I couldn't have had a better place to stay in DC, and we hardly scratched the surface of things to do - so I may be back! - thank you Nora, and family, for your hospitality!