Cristina is a caring host and available at anytime.
Her apartment was very clean, and cool for 2 people. We stayed 4 nights in May, and it was the real life in Roma, without tourists.
But, the location is out of the center, 15mn to the Coliseum, 25mn to Plazza Venezia by bus (bus station is just in front of the street).
We had a very good stay, but too many rules for a Airbnb.