Paolo was the most gracious and helpful Air BNB host that we encountered during our holiday in Italy. Rome was our first stop during our trip and the 1:00PM (13:00) check in time was the most ideal since we didn't have to worry about where to stow our luggage before check-in. I contacted him prior to our arrival about having a private car service drive us to his Air BNB from the airport since we didn't want the stress of trying to figure out how to best use public transportation in a brand new country.
The check-in process went so smoothly. Paolo doesn't really speak English so we had to communicate primarily through Google Translate. We were still able to understand each other well enough that he answered whatever questions we had very promptly using WhatsApp.
Paolo's place is very close to the entrance to the Vatican and close to the Cipro Metro Station and Number 46 bus. (If you do plan on using the bus to return at night, you'll need to plan on the bus being late regardless of what the scheduled transit time is as the bus system was not the most reliable in Rome, particularly, at night time. One night, we had waited 30 minutes after the scheduled time for a bus to pick us up and drive us back). Coincidentally, the first place we ate which was on our list of places to go in Rome was Pizzarium Gabriele Bonci, which was across the street from the Cipro station and it was one of the best places we ate during our holiday.
As others have mentioned, the elevator and shower are small but that is to be expected in Europe. Also, if you are returning to the air BNB from the Metro station, it is somewhat of a steep climb up stairs to return so if you have bad knees or are in poor health, it might be difficult.
Overall, Paolo gave us great tips such as how to avoid being victims of pick-pockets and that there really aren't dryers for doing laundry in Italy. I believe he genuinely cares about his guests and is a really good person.