Marco is a great host. He was very swift in communication, went the extra mile to let me in a bit earlier than check-in time, and gave me very helpful tips about the city.
The room is a bit small, but absolutely enough for one person. Sound isolation is not very good, but the house is generally quiet, so no problems there. Room, bathroom and kitchen were very clean.
The house is 30-40 minutes away from the center, 10 mins to tube (zone 2), 1 min to bus station.