We loved Federico's apartment. The location is great and the stone spiral staircase is amazing! The apartment is compact in size but had everything we needed. There were 3 of us and the sliding pocket doors between the kitchen, living room, and bedroom provided privacy and quiet for sleeping. There can be quite a bit of street noise on the weekends, since Piazza Mattei is just a few doors away and there is a nice wine bar right there. The front windows with shutters blocked the noise very well, so we had no problem sleeping. The apartment is the only one in the 14th century building so there are no upstairs neighbors. Federico was great at check-in with restaurant recommendations - loved this place!!