Carla's place is very cute, with good space for 1-2 people, and in a central location to easily access the major sights in Rome. The apartment itself is comfortable and inviting, and I enjoyed my stay overall. There are two things that prevent me from giving five stars:
1. After a couple of days, the air conditioning unit broke completely and did not turn on for the rest of the week. They did make an attempt to fix it, but unfortunately did not work.
2. Because this is a first floor apartment in the center of Rome, the street outside is very loud, and there were several nights that people hung around right outside the window until 1-2 in the morning very loudly talking. If you want quiet and privacy, this may not be the best place for you.