We spend a great moment in Sabrina's flat. We met her brother who presented us all we had to know about the transport, good restaurant, neighborhood... It was very nice.
The appartment is very pretty. And we spend a pleasant stay.
The flat is very well located (around 10 minutes from the metro station Re di Roma - bus in front of the building - or 20-25min from the Coliseum by walk).
We recommend it !