Barbara is a great host, she is a nice lady and very responsive. The apartment is in a really nice safe authentic Italian neighbood and just a leisurely 15-20 minute walk to the subway which will take you to the tourist attactions. As for visiting the Vatican you simply walk there, it's just a 25 minute walk. The apartment is clean, quiet, and very modern. Air conditioning is a big bonus, I highly recommend this Airbnb!