Luciana was a wonderful host and the room was simple and comfortable. I would definitely recommend staying here if you're coming to Rome for a few days and are on a budget! The apartment even has a terrace, and you can use the kitchen. The location is very convenient -- it's outside the city center, but the number 8 tram line and H bus that stop very close by take you directly downtown. Also easy access by public transit from the airport. There are cafes and such in the neighborhood.
(As other reviewers have noted, there are cats in the apartment...if you like cats, you will enjoy them, but if you're allergic, definitely choose somewhere else to stay :)