My husband and I stayed in Mario's flat for four days while visiting Rome and we could not have asked for a more gracious host or comfortable accommodations while we were there. Mario gave us full use of the entire flat in addition to our private bedroom and bathroom, and even provided us with a huge array of breakfast foods to eat while we were there. It was a huge relief to not have to search for breakfast every morning and we took full advantage of his many treats! We also had to deal with getting to the airport in the middle of the night for our return flight, and Mario went out of his way to arrange a taxi for us and make sure that we understood what we had to do that night when it arrived. Although we shared the flat with him the whole time he was very inconspicuous and we felt like we had plenty of space. The flat is beautifully decorated and it was fascinating to observe all the various artwork and furniture that he has collected over the years. The only two drawbacks we experienced while staying there were very loud neighbors and the hassle of getting to and from central Rome. The neighbors talked and played the TV at incredibly loud volumes at all hours, including as early as 7:00 AM and as late as 11:00 PM, making it very hard to sleep. In addition the lack of infrastructure in the Roman metro system made getting around very exhausting after a long day - so this should be considered if you are not somebody who is willing to commute while traveling! However, neither of these things were under Mario's control and again, we can't say enough good things about him and how enjoyable our stay was with him! We would definitely stay with Mario again if we returned to Rome. Grazie Mario!