We had a great experience at Daniela's place. It was really well located, just 10 min walking from Piazza Venezia or Agripa's pantheon. The house was really comfortable with a functional kitchen, and has an interesting guide of local recommendations (where to eat, drink, go out..). Moreover she let us keep our luggage inside (since we had a quite late flight) until we left to the airport. I definitely recommend it if you want to visit Roma!