Had an absolutely wonderful stay in Sonia's apartment: the flat itself was bright and very comfortable (particularly the lounge sofa), spacious for 2 people and excellently located near Campo di Fiori, Piazza Navona and the Pantheon. In fact, we did not need public transport all week.
Sonia herself was an excellent host, offering to arrange transport to and from Fiumicino as well as providing some wine and olive oil. Overall, a very enjoyable stay.