I stayed at Valeria's place from 26th- 29th Dec. Even though she was not in town, she ensured I was cheycked in and taken care of well. Her roommate was in the house. She kept in touch with me through out the stay. She is extremely accessible and friendly.
Valeria's place is really convenient to access central Rome. There is a bus and metro station within few minutes of walk. There are lot is shops and eateries just downstairs.
I would suggest her place for staying at Rome.