Beth and Brian were great hosts. They were quick with communication and provided a lot of details instructions. They were accommodating with a late check out and providing parking.
That said, their place was not a great fit for our needs. Ceilings were very low, which made my our visit (we are both about 6 ft) somewhat uncomfortable. There were a few spots where the ceiling was even lower (assuming to accommodate ducts/pipes) and I hit my head hard getting into bed one night. Location is good - close to the potomac ave metro, but the entrance is in the back of their house, so you have to walk around an alley to access it.