I would stay here again in a heartbeat. An amazing apartment in a convenient location close to Vatican and across the river from all the tourist destinations. Felt like home for me and my family. Tons of space to live and spread out. We were greeted warmly by our host and shown all the necessary details. There is a nice common space outdoor patio with adjoining room that has a washer and dryer.
Note that the building is on a very narrow street so anything bigger than a small car will not fit. Also, the unit is up a narrow set of revolving stairs (up exactly 40 steps as my son counted). Take both of these things into account when travelling with lots of luggage.