The room is very comfortable and totally private. It has only a shared entrance with the host's apartment. The ensuite bathroom was very modern an chique. Everything was very clean.
The neighbourhood feels quite safe in the university district and is well connected to the tram line and a short walk from Termini. I also liked that there were plenty of pizzerie, stores, bars nearby.
My 5 night stay was mostly quiet, but unfortunately, the apartment is also around the corner from apparently THE undergraduate bar to celebrate when people graduate so there were literally 500 people gathered in the nearby street until late on two evenings.
The only negative was the poor internet connection. The router must've been very far into the host's apartment because the connection was limited to one side of the guest's room and was quite slow.