Elvira is a very welcoming and accommodating host! She had a very delicious dish waiting for me upon arrival I was coming at a time when restaurants/markets were closed. The listing was very cute on the inside.
It took me about 1.5 hr to get to location by train from airport. First you have to take the airport train to the Roma main metro/train station then take the metro to the city train that takes you to the train stop that is about 5 min walk from listing.
I took metro/train during stay and to get to Colosseum it took around 30-45min because you have to take city train to metro station. The city train stops running around 9. Elvira does note this in guest arrival tips and makes suggestions for bus:taxi.