Francesco is very nice, and a great host, he waited for us with some fruit, wine and croissants. The flat is around 15 minutes of walk from the Termini station, as well as the Colosseum. It is very clean, spacious and comfortable. Just make sure to bring some slippers if you're coming during winter, since the floor is tiled and it might be a bit cold to walk around the flat without them. We enjoyed staying there, and hope to come back when we travel to Rome again.