I stayed in one of Mark's apartments for 3 weeks and I had a wonderful time. The location between Georgetown and Foggy Bottom was excellent, the interior design was very tasteful and the apartment itself is brand new. The place is even better than the pictures! Very close to great shopping, Trader Joe's around the corner, many places to jog and exercise (full access to a nearby gym & pool - I was there nearly every day - it was that great), plethora of good restaurants to choose from. Most importantly, Mark was a great and responsive host that would often reply within minutes with any queries. It was a delight staying in this apartment - book it, it's an Airbnb gem!