Didn't get to meet Gary, but his mother greeted us during check-in and explained the rules / how-tos of the house.
The room is small and cozy with a mini fridge, a bed, and a closet for your luggage and bags. The mini-fridge was stocked with bottles of water, apple juice and pineapple juice, which was much needed after a long walk around the National Mall.
There are two other guestrooms on the floor, and we shared the floor bathroom with the other guests. I initially thought it would be a hassle, but we ended up sharing pretty well.
The house is close to the bus stop that goes to Union Station, and is a walking distance to the local restaurant and bars.
Sweet stay!