Lovely place, comfortable and clean. We stayed three nights and it was fairly easy to get around to all of Rome's sights. Only a 15 minute walk to the Vatican and to the train station/bus stop at San Pietro is only 5 minutes.
Vinicio was a great host and showed us around the local neighborhood once we arrived. He was also great with helping us with directions etc and the breakfast was the best we've had since using airbnb!
The neighborhood was quite noisy of a night as it was super hot (so the windows needed to be open!) But overall it was a nice stay in a great apartment.