We didn't meet Roberto personally but met Roberta, who was kind and helpful with everything. She showed us everything and took the time to give restaurant and gelato recommendations. She messaged to make sure all was going well and responded to message very quickly. The Airbnb was spacious, had a fully-equipped kitchen, comfortable, and has a washer and dryer. The neighborhood is very close to the Vatican and a Metro stop, and it's within walking distance to lots of sites. We were very happy with our stay and highly recommend Roberta's and Roberto's place.