This place was perfect for our group of 6 (4 adults and 2 kids). Lisa and Steven were very responsive when we had questions, and the bathrooms and bedrooms were stocked with everything we needed. The kitchen had all of the pots, pans, and dishes we needed to prepare breakfast most mornings before heading out for some LONG days of sightseeing. The Harris Teeter grocery around the block is amazing.
The location of the townhouse is great, too. Only a block to the metro, which was clean, easy, and just $2-$2.50 to most locations we travelled. You can see the Capitol from the corner, and there are lots of restaurants nearby. We went over to Eastern Market on Saturday morning - lots of great eats and local artisans. Market Lunch (inside) has delicious, fast, and affordable breakfast (we went there twice).
I could go on and on, but won't. It's enough to say that we could not have asked for a better location or better hosts.