We quite enjoyed Federica's place. As others have mentioned, the location is both a good location and quiet. Perfect combination. The unit was very clean and Federica was kind enough to supply plenty of treats; she also let us check in early as our flight from overseas landed mid-morning. Accessing the unit from the Trastevere train station was very easy and the directions were spot on. Would stay here again in a heartbeat. Do be sure to try the nearby Tonnarello for some excellent food at crazy reasonable prices.