I have stayed for 3 nights at Elisabetta's place in Rome. I really recommend this option if you want to live in calm non-touristic area which on other hand is very close to Vatican and city center - there is good bus connection and bus stop near house. There is train station just 10 min away from house so you can get to Termini quickly in case u need. There is tobacco shop, little cafe and shop close to the house. The appartment is veeery clean and comfortable, it is a real pleasure to live there. There is terrace with beautiful view on city and i recommend you to take a walk in this neighborhood the way up - picturesque view, fountains, villas and gardens. Elisabetta will advice u with that, she is very hospitable, helpful, interesting and open person who really takes care about guest's comfort - good breakfasts, new towels, maps and recommandations - everything was just perfect.