If I could give 6 stars for location and the host I would!
This is the perfect spot to explore Rome from. We had a beautiful fresh bread delivered to the door in the morning and headed straight to St Peters for 8 which meant we bet most of crazy the que. (If your heading to the Vatican after we would recommend a skip the que ticket for the Vatican which we paid $30 each).
It's also only $15 in a taxi to the centre of Rome or the train station is at the door step.
Catherine is a lovely host and goes above and beyond to make your stay enjoyable.