Fulvia is very friendly and accommodating. She always responded to my messages in a short time, and took care of my luggage after check-out time, which was very helpful.
The room and the shower are impeccably clean. It was very hot when I visited Rome. Although the room does not have air-conditioner, during night the temperature is quite comfortable for sleep.
The location of the house is within walkable distance to the Vantican. 15 min walk to Metro A. There are bus stops nearby too, but buses seem to be late often.
Overall I recommend staying at Fulvia's place.