The flat in itself is great and exactly as described. It is very clean and beautiful and the AC unit is much appreciated. The communication with Andrea was fast and smooth. The bakery/restaurant "fatti di farina" at the street corner is very highly recommended!
Be aware that Rome's public transportation is not the best (that's a euphemism) and commuting to/from the city center takes a while and is not so comfortable. Also, the WiFi connection was a bit slow.
Regardless, we enjoyed our stay very much and we had a great time in Rome!