Just excellent apartment, just as described. We felt very welcome with the reception by Simone, and with groceries in the kitchen to get by the first night. The location is really nice, quiet and local, and the metro made it really easy to get into the more touristy areas.
Simone and Susanna has also made great guide materials that helped a lot.
By the way, the nearby Cremeria Aurelia and Restaurant Joseph are both excellent :)