We stayed one night at Marco's place. When we arrived no one answered the main door despite ringing the doorbell several times. We had to wait until someone else from inside the building left in order to enter. Marco's apartment is very nice, modern and spacious and wifi is good. However, it is quite rowdy at night and apartment building has a strong cigarette smell. But, the apartment was conveniently located around restaurants and supermarkets. It is also a short distance from Roma Termini which was useful. Marco responded to messages very quickly which was very handy.