I stayed with my mother for 4 nights at Costanza’s place. We were not able to meet her in person but her mother was there to welcome us instead and she was really lovely.
She recommended places to have a light meal and dinner and was really kind to buy some soap tabs for us to do our laundry.
Communication and replies were quick every time. When I come back to Rome, this would the place to live. All major sights are within walking distance.
Only comment is that it can get a bit noisy at night as the apartment is located in a square, but otherwise it’s perfect.