Enrico was a great host! We managed to loose our keys at the Vatican the day after we arrived and Enrico was able to meet us at 2230 on a Saturday to get new keys to us! We were more than willing to pay a small fee to have his lost keys replaced. The metro line was very close to his flat, and the room was nice. Each room had a TV and a private bathroom to accompany the bedroom. A group kitchen was there, it could have been a lot cleaner though, I wasn't willing to use it because it was dirty.
The Vatican is about a 30-minute slow paced walk, and you get to see a lot of the outside community by taking it, but there was also the metro line very close to avoid any walks if needed. Enrico communicated well with us and offered a few tips as to how to navigate!
Cons: Kitchen cleanliness and Enrico doesn't look like his posted photo at all (as of 8/17/18) which could be concerning for travelers.