We stayed in Rossella's flat early August 2019 and we really enjoyed our stay.
Not only the appartement was fully compliant with the description and the pictures on the site - the flat is spacious (high ceilings), clean and with a simple but tasty decoration, the Air Con works perfectly (important during the summer!) and the terraza lovely.
What made the difference was the excellent communication pre and in trip with Rossella, who really gave us customized advices based on our wishes (places to visit, restaurants etc..).
The appartement not right in the center of Roma, but there are plenty of public transporations near by (Metro, buses, tram).
We do recommend you to stay there.