The apartment is ideally located. Really close to the Campo dei Fiori and Piazza Navona. All ancient Rome can be discovered by feet from the apartment.
Roger & Team are very nice, especially Federica, who managed our arrival, even the booking of a tranfer from the airport to the apartment and gave us some good recommendations for restaurants in the area.
The apartment itself is functional. We left the "cooking essentials" we bought (salt, pepper, oil...) for the next visitors because they were missing when we came.
For people coming in winter, have warm clothes for the night because the heat shuts down at night. I must admit we had exceptional weather conditions (snow in Rome) and that our experience is not the average one, but some nights we were cold.
Globally a good experience and we recommend Roger&Team.