We stayed at Claudia's excellent apartment for a weekend as a family group. The apartment was large and equipped perfectly for our needs.
When we arrived we were met by a young lady who I had been told was Claudia's cleaner. Her English wasn't great but she showed us the features of the apartment and phoned Claudia to allow us to ask any questions.
The apartment is well located for a tourist visit being less than five minutes from St. Peter's square and on the 64 bus route.
There were good restaurants and bars either side of the apartment door and the noise from these did not make it into the well insulated rooms.
Overall if I was travelling with a group again, I would definitely try to book here and would advise friends to do so too.