Anna's apartment is located in the wonderful neighbourhood of Trastevere and it was our favourite place to stay (Paris, London, and Italy). It is within walking distance to the Vatican, Pantheon, and other popular and well known sights, restaurants and supermarkets, and has a vibrant nightlife right on its doorstep (without the noise)! The apartment is very clean, spacious, safe and secure, and well equipped, and Anna was a lovely host :) We hope to come back and stay again someday.
PS: we highly recommend you eat at Pianostrada (bookings are a must!) which is just on the other side of Ponte Sisto. You won't be disappointed!