Alberto is the perfect unobtrusive host and gentleman. The location of the apartment is near perfect - 15 minutes walking to the Vatican, about the same to the any of the bridges that'll take you across the River, about 15 minutes also to Trastevere. Modern apartment with all mod cons, the morning sun in the living room and blackout blinds all over that guarantee great sleep. Alberto had a great cake to welcome us, and starter packs of coffee, tea, etc. The local Carrefour is about a 7 minute walk. Grecco Enjoy is a great little cafe just down the hill from the apartment.
Alberto was also kind enough to organize a taxi for our journey back to FCO. He's responsive, prompt and helpful, as good a host as I've ever had at Airbnb.