This a very nice place, it feels very modern and clean. Roberta is clearly a professional in a good way. She is very communicative, friendly, and flexible for meeting. She sat down with us and a map to circle some key Roman sites which was a nice touch. I do recommend this place. It was maybe a 10 minute walk from two metro stations (same line). This room feels like a small hotel room. We had our own private bathroom and then share the living space for other Airbnb guests.
My only complaint is the room says there are 2 beds. I reread the posting to make sure I didn't mistake something but I don't think I did. We were 2 people staying there and the rates were very good. But if we wanted that second bed (which I was expecting) we would need to pay almost double and I am not sure where it would go (the room is cozy). We were explained that the second bed is there if we were 3 people, not 2. And the price would go up with 3.
All and all this is a really nice place at a really good value though.