Before and during the trip to Vatican City, Tiziana was very responsive to my queries. Since it was our first time to Rome, the suggestion to arrange for a private taxi transfer to her apartment late in the night was super helpful. She was waiting outside the apartment to receive us - which many hosts won't do. She took time to explain the amenities, gave us tips for local transportation and the checkout instructions.
As far the apartment, everything was super clean and the bathroom was supplied with shampoo and clean towels, etc. Working washing machine was very useful, though you need to figure out the settings since it works differently compared to US machines.
We had a tour of Vatican the day after our arrival and we had no difficulty walking there since it was very close - 10 mins walk. One can see the dome of St. Peter's Basilica if you step out of the apartment building.
Next time, if I am visiting Vatican I will definitely use Tiziana's airbnb apartment!