We enjoyed 3 nights very much. But we were sightseeing so we left early in the morning and came back late every day.
The staff is wonderful, very accommodating. We felt like we were staying with friends. Coffee, danish, fruit provided and we brought to our room. I felt bad for making coffee so early in the morning because I probably disturbed the whole place.
The atmosphere is spectacular, hot hot water, comfortable bed, excellent AC. Walls a little thin but not too bad. Elevator small, but 2 people ok, safe locks (main door, gated entrance and then the hotel and then room).
This is a building built in the 1700s (I believe) and close to Pantheon. The hotel has no control over the noise from street but it wasn’t bad. This is a guesthouse so the staff leaves at night. We felt perfectly safe.