Terry & Mark's place is very clean and welcoming; particularly the welcoming words on the whiteboard which we felt their hospitality, immediately :). Also, their snacks and their guidelines/ instructions are something you cannot find in other places which makes it more unique. About transportation, we used the car, and it took roughly 17-20 mins to downtown. Just a friendly reminder that the traffic is pretty intense, and if you are not used to driving in a big city, I will suggest either drive a smaller car (do your homework prior to visit DC) or just take their metro which we didn't cause we brought our doggie during this trip. Terry & Mark's place has a parking place which made us more convenient. Overall, I would definitely come back to this place again!