We stayed in Andrea's apartment for 3 nights.
It was a comfortable stay with a decent set of amenities, the highlight of which was very good Aircon which was necessary given how hot it was in Rome and a comfortable bed.
The location is right next to the Collaseaum in a very lively area which is nice! If staying again we would probably stay slightly more central to avoid the longer walk - but if this doesn't bother you, the location is good with lots of nice bars & cafes.
Andrea provided clear directions & lots of Rome reccomendations. We had an issue in the flat which, despite deputing the issue, he solved the next day - he was a well organised host.