I chose the airbnb because of its close proximity to Termini Station. Despite it being a busy street, which is apparent the moment you arrive, the host is honest and upfront about it. They're even nice enough to provide ear plugs. I grew up in NYC so the noise didn't bother me. The only annoyance I had was the door to the room I stayed in; the key was so difficult to use because something with the lock is faulty. Aside from that I'd stay there again.