This is a lovely flat, which I highly recommend. Flaminia welcomed us as we arrived, showed us around the flat and was very responsive whenever we had any questions. She booked a taxi for us from the flat to the train station for our last day, which was amazingly helpful.
The flat has everything you need: A well equipped kitchen (including dishwasher and washing machine), a nice and clean bathroom, a comfortable bed and there were two bottles of water waiting for us when we arrived, as well as biscotti and jam, which was very useful for the first morning.
The absolute highlight is the balcony/terrace surrounding the flat though! It's beautiful, large and spacious with different seating areas, has wonderful flowers and a fantastic view of St Peter's.