The greatest advantage of the accommodation was not its comforts or location (even though it excelled in both areas - being located just opposite of Vatican across the river) but its hostess.
During the difficult post-COVID situation she was able to explain all the possible traps of the current Italian measures but also recommend the most suitable way how to get tested. In Rome there is an app or that. As a foreigner you have no idea. She did the research, recommended the closest testing facility, sent the link. Superb!