We enjoyed staying at Anna's apartment. We arrived later than originally planned due to flight changes, but Anna was there to meet us. She gave us a map of the city, some great restaurant recommendations, and told us about the nearest grocer and bus lines.
Communicating with her was easy and she responded promptly to help us with our silly questions.
The apartment was as advertised and very clean. I wouldn't hesitate to stay with Anna again; she works hard at providing a positive experience for her guests.
The apartment is very close to the Vatican but a slight walk from other ancient Roman structures. So plan on using other forms of transportation if walking approx. 40 minutes is hard for you.