This was my first experience of using AirB&B and Zolilla did not disappoint. Franca is a very personable, friendly and helpful lady and was at the apartment to meet me; helped carry my bag up the 4 flights of stairs!; showed me how to use the keys and my room etc. I chose to stay in Room 2 which was very spacious with the most comfortable bed on my stay in Italy; good sized bathroom; great shower pressure and hot water; quiet and dark!
A good 10-15 minute from Termini Roma means it's very walkable instead of getting a taxi; Metro stops just down the road, as is the Colosseum, Roman Forum & Palatine Hill, then a short stroll to discover the Trevi Fountain, Pantheon etc, or catch a train to the Vatican City or walk (which is a long way back but doable).
Zolilla is very clean; adequate breakfast with an array of different teas, and espresso coffee machine.
Don't hesitate - book in at Zolilla B&B :)