Valerio was very welcoming, he waited for us outside and showed us the apartment that is very well equipped and very clean. He also left us a map of the city and of the metro stations ( he even located "The place" on both maps). There are also in the apartment books on rome as well as a few guides on different routes.
He recommended an amazing restaurant as well along with some other places that were very helpful. I even texted him at some point to ask him how to get to the vatican, he answered instantly.
I really recommend this place, the neighbourhood is very calm and nice, not very far from the colosseum.