I spent a few days at Mark place while attending MIT course. It is perfectly located with walkable distance to all nearby universities and many others like starbucks around the corner for morning coffee and wholefoods for breakfast. Mark runs his airbnb very professionally and makes sure that guest has best and smooth experience while checking in/out and staying in the apartment. Apartment has all you need from home away from home and my room already was so well equipped that i rarely used common spaces. I had a chance to meet Mark and had a great conversation. He is a nice guy and i recommend his place to other professionals traveling to Boston.