I had already written a report, and I don't know why it disappeared. So here again.
The apartment was very clean, quiet, spacious and comfortable. Everything we needed was there. Communication with Barbara was easy.
The location is excellent, which is the biggest advantage of this place. A bus stop is right outside the house, most important places can be reached on foot or by bus within about 20 minutes.
As a summary: we would certainly try to book this place again, if we return to Rome for another visit.