Mario was a wonderful host! My husband and I celebrated our one year anniversary while in Rome and he left us a wonderful bottle of wine that we enjoyed when we made our own dinner from the fresh ingredients at the nearby markets! The apartment is within walking distance to nearly everything and there are some really wonderful restaurants and shops on the same street. We enjoyed our visit in the apartment very much and wouldn't hesitate to go back when in Rome.
Make sure to visit Castle de Sant' Angelo right across the bridge- the views and history are wonderful!
Mario also made it very easy for us to get to Termini station, when we were headed to our next destination, by arranging a taxi to pick us up- super nice!