The stay at Giorgia's house produced a positive impression on me. The hostess and her daughters were very friendly and helped me with everything I asked them. The room and the bathroom were always very clean. In the morning they also offered me delicious coffee.
The apartment is not in the center of Rome. The buses to the nearest metro station pass normally at daytime, but you may have a hard time getting back late at night. The night bus services are not available after 00:10 (it's the time when the last bus leaves from the Ponto Mammolo metro station).
All in all, it's quite recommendable, taking into account the friendliness of the hostess and the price.