Great place to stay if you're looking to visit D.C. for whatever reason. The location was great for everything. Family friendly residential neighborhood but within 5 or 10 minutes you could find yourself great food, a pharmacy, a bike share (which might be the best way to get around if you don't have little kids), the metro station, or even a grocery store if you'd rather make your own meals.
The house itself is very clean, well kept, and functional. We had 2 young kids with us and 4 adults total and it never felt small. Greg keeps everything organized and tastefully simple. There is even a nice back patio to enjoy the weather.
Unfortunately, we didn't get to meet Greg because we were exploring the city but he was easy to communicate with and responded quickly.
I would definitely recommend this place to anyone staying in D.C.