Great location. Everything is in a walk distance max 30-40 min. We even came back walking from Vatican.
We haven't met Giacomo but met Lino instead. He explained everything, we had a 3,5 euro fee per person per night.
Location-perfectly situated at the heart of the city.
Neighborhood-at first we felt it was not a nice neighborhood. But very quickly we found out it was a quiet place, everyone friendly, no noises, nothing bothered us.
Apartment - very nice place, comfortable bed, nice bathroom. We had everything we needed.
Host- We needed to leave our suitcases earlier. As promised the Giacomo arranged that. Lino was on time. We left our luggage, took the keys and started exploring Rome. We def recommend this apartment :)