The neighborhood where the apartment is situated is a very live, vibrant and safe area with very few tourists and lots of locals. The area is close to many interesting sites like the catacombs, palazzi, churches and the archaeological museum. The people were always friendly and helpful and there were people on the streets till very late at night. There were all kinds of shops, pizzerias and open markets nearby. The only disadvantage for us was that it was very noisy because of the traffic and that at the evenings the streets were very dirty and full of litter (at least for our standards) most probably because of the open markets.
The apartment per se was great: clean, comfortable, recently and nicely renovated, with all the amenities one could need, with lots of natural light and a cute balcony. There was also a private terrace on the roof of the building just for the apartment, with a nice view. As indicated, the apt is on the fifth floor with no elevator.
Alessandro, the host, was great: he welcomed us very warmly, we had a nice discussion, and later during our stay answered any question we had very fast via sms. He gave us very good local tips that there was no other way we could have known.