Danilo's place is a fairly central and right outside the door there is a tram that will take you to practically anywhere in Rome with only one or two stops.
The apartment was clean. There is a shared bathroom and the residents tended not to lock the bathroom door, which created some slight discomfort.
House rules stipulate that no shoes can be worn. The apartment has a strong smell of incense sticks.
Unfortunately I unwittingly broke a couple of house rule (a misunderstanding). However, the reaction on the part of the host was out of proportion (communicated via Airb&b) with several exclamation marks and a general hostile tone, which made me somewhat uncomfortable, particularly as I profusely apologized for the minor infractions of those house rules ( I misunderstood the kitchen rules, thinking that 11 was 11 in the night, and so one night used the kitchen)
The young lady in the apartment was very helpful securing us a taxi at 4:30 in the morning.
The room was fine, and although there were trams and heavy traffic both at the street level and on a raised motorway right outside the window, the noise was not overwhelming.
However, I believe that if I ever go back to Rome, I shall look for an upgrade and pay some more.