I can definitely recommend Ariana's place. The moment I booked, she sent me very precise details as to how to get there, what shuttle bus to take from the airport: best bus company and best price. As a tourist you wouldn't know that sort of thing. The day we left for Rome, she sent those directions again, in case I would have forgotten - very sweet. When we arrived, Ariana was there to welcome us and give us more tipps, for example on what sights to see when - in order to avoid tourist peak hours. She is such a friendly person, to us it felt as if we were staying at a friend's place! And yes, of course, the place was pleasant, quiet, very clean, and had everything you'd hope to have - even tons of extra bed covers. We were in an upscale neighbourhood, close to Metro Barberini and several bus stops. Within walking distance from Trevi fountain and very close to Piazza di Spagna. Highly recommendable!