We highly recommend Rosa's flat. It's very clean, spacious, and cozy. It is also well equipt and situated in a lovely neighborhood with plenty of great food joints. The location is also very good. Only 10-15 min walk to the Vatican museums and very close to a metro station (Cipro). Above all, Rosa is a perfect host. She is very helpful and kind. If it happens to return to Rome, we will choose the same place to stay. :)