We interacted very briefly with Graham and Lexie, but we found them friendly, hospitable and eager to make our stay comfortable. The neighborhood is pretty and seems very safe; we especially enjoyed the walk to the Columbia Heights Metro station, passing by quite a few new cafes and restaurants with outdoor seating. The apartment is very large -- it was more than enough space for the three of us, and could easily accommodate five people. Having A/C in every room was much appreciated. We also liked the wooden deck facing the back yard, where we relaxed at night after a long day of sightseeing in DC. The only minus, we would say, was the bathroom, which felt a bit old and cramped. But overall we're happy with the value we got for our money and we would recommend this place to our friends.