Renzo's place was one of the best Airbnb's I've stayed it. Spacious, clean, stocked with snacks and drinks, and reasonably priced. Although Renzo wasn't in town during my stay, his mother made it very easy to check-in. The apartment is located a little far from the center of Rome, but is located near a major train station (making it easy to get to the apartment after landing at FCO airport). The area itself is very safe and Renzo's recommendations on where to go and what to eat are spot on.