Location and space!
Quaint old building with a lift to 4th floor. Bedrooms (with walk-in dressing areas and comfortable beds) at either end of the apartment. Small kitchen, large living room (with dining table). Good wifi. Three AC units that cooled the apartment quietly (it was 40’C (104’F) for few days when we were there). No street noise. Good for our family of five or 2 couples.
Location was perfect. At bottom of street there were tram and bus stops. The 8 Tram goes straight into the heart of (tourist) Rome. A short walk brings you to the centre of Trastevere with lots of restaurant options. The Italians dine late so we had no trouble finding dinner at 11 PM when we arrived late on our first night.
Davide was a great host - responsive to questions and great at providing detailed instructions (even down to how to get one sticky building door lock to work). He arranged transfer from airport on our arrival.