Maurilio was really nice and discreet during my stay. He gave some tips to speak italian and about the transport in Rome. The room is as described and really big. The kitchen and bathroom are nice. The Internet conection worked great. Maurilio left a lot of things to make our breakfast. The place is really quiet and private, it has other room for rent but I only met someone else in my last day.
The apartment is in a 3rd floor (no elevator) of a clasic building in a great spot in Trastevere (and Trastevere is the best neighborhood in Rome), I really recomend to walk through it. It's beautiful and full of great restaurants and bars. Also you can get to almost all the touristic places by walking, but if you prefer to take some transport, you have the bus, tram and taxi stops a few blocks away.
I'll recomend this place, especially for young people.

Grazie mille Maurilio!