I highly recommend Marco's apartment. Spacious with two bedrooms, two bathrooms and a well equipped kitchen kitchen, one could be not ask for more. The location is also excellent, right in the historical centre close to Campo de'Fiori - you can walk to all the famous sights. Marco is a reliable host and quick to respond to messages. He was also very promt and helpful to provide us with an extra set of keys. I would be happy to stay at this apartment again next time I visit Rome.