We had a lovely stay at Alberto's apartment.
The apartment had everything we needed ( sitting room, terras, bedroom, bathroom, kitchen), was very clean and has a great location: nice and quiet to sleep and wake up and yet only five minutes from the Metro, the lively Piazza del Popolo, a supermarket, ... It was very convenient to have lots of sights at walking distance or to be able to choose the Metro if we wanted.
Alberto also gave us a guide with restaurant tips and other tips.
We would definitely stay there again