We enjoyed our stay in Roma at Marina's apartment. It was located very close to Piazza Navona. The apartment is very spacious and comfortable.
Marina was easy to communicate with, and the person she sent to meet us for check-in, Rossella, was very kind. The apartment is as pictured, and was clean.
There are plenty of excellent restaurants, shops, and attractions/landmarks within walking distance of the apartment. It is about a 35 min walk from the central train station, but it was easy to catch a cab or uber there and back. Overall, the location was fantastic. We recommend a stay at Marina's apartment.