Roberto's home is truly a gem. Simple train ($8 euro)ride from the airport to his location. His place is better than the pictures suggest. Secure and perfect layout, beautiful terraza for early morning cafe or late night drinks. Steps from the door you can take the tram that will drop you directly off in front of the Colosseum. Once there you are in walking distance from all the big attractions. Easy access to the heart of Trastevere.
Roberto was very friendly and welcoming. Even after waiting an extra hour for me due to my plane being delayed he welcomed me with a big smile and warm welcome into his home.