Vincenzo and his wife are great hosts, they waited for us late at night on our arrival, and made everything very easy, they kept our luggage for us on the sunday and called a cab for us.
The appartment is located near the vatican and the Metro A, so even if it is a residential area it is super easy to reach everything.
The place was perfect for us (we were 3 friends), secure, clean and well furnished.
I would definitely recommend Vincenzo's place!