Mark was an awesome host! I stayed at his lovely townhouse for the first month I moved to DC. The house had an intellectual vibe. You are sharing the house with a few other guests and everyone that Mark hosted/selected was both friendly and intellectual. The living room has a great reading/social set up with great books, board games, and a smartTV.
During my stay, Mark hosted a house party for his son's 18th bday and invited all the guests. He was a great cook!
Mark is also very good at accommodating people's needs, which is important for long-period stays. I asked for a full-length mirror (cuz im a girl and like to dress up every morning). Mark went out to buy a mirror and put it up in my room.