We can highly recommend Maria's apartment. It has all you need for an authentic stay in "bella Roma".
Check-in was smooth, we arrived late in the evening, which wasn't a problem at all.
The apartment is located in the Travestere neighborhood, close to many good restaurants and bars. You also find grocery stores nearby to prepare yourself for sightseeing. Exploring the city by foot is incredible and the apartment is a good place to stay, a little off the city center.