Marys has a wonderful place to stay if you find yourself visiting Rome. Very close to the subway (which is a piece of cake to use) that leads up into the heart of Rome and continues all the way across the city to the Vatican, and equally close to the Coliseum and the rest of the Forum. We also had good luck finding restaurants that were a little quieter than the ones you find in the tourist heart of Rome by heading just south of the Airbnb.
Check-in and check-out was a breeze and the room was spacious and clean - I would be happy to stay there again if I get the chance!