Stayed at Federico's apartment in October with my family - parents, sister and my wife. The unit is very large and was plenty of space for all five of us to be comfortable. Each bedroom is roomy and has its own private bathroom which is a plus. Bathrooms were also clean and felt cared for. There is an outdoor balcony which overlooks the street and provides some fresh air for a late night glass of wine. There is also a washing machine which can be accessed from inside the unit and was a great way to refresh some items during out trip. Check-in was super easy and we were greeted at the unit personally and even dropped off our bags at 11:00 which was prior to the scheduled check-in at 3:00 since we had an early flight into Rome. There was a helpful explanation of the unit and amenities and then we quickly left so that the cleaning crew could do their thing. The location of the unit is about a 10 minute walk from the Otaviano metro stop on the A-Line (orange) otherwise there is a bus stop outside on the street with many of the main routes available. You are truly at the doorstep of the Vatican and Piazza de San Pietro. Lots of restaurants, bars and cafes are within a two block walk. The only downside to this unit is that it is located on a somewhat busy street and there can be some traffic noise at night for light sleepers. I personally didn't get bothered and actually like the hum of the city. Very glad to have stayed here during our trip!