We just returned from traveling all over Italy and stayed in 4 different B and B's throughout the country...and this apartment was by far our favorite. It is in a great neighborhood in the city, just far enough from the massive crowds but close enough for easy subway access anywhere (the station is just around the corner)...lots of good neighborhood restaurants and after a busy day on foot throughout Rome this was the perfect apartment to retreat to. It is clean, relaxing, very comfortable and decorated stylishly.
Sergio met us in person (he lives next door) and graciously filled us in on everything we needed. We were pleasantly surprised with how tastefully the apartment is decorated (it is much nicer in person than even the photos depict) and it felt like staying at the home of a relative rather than a rental.
We have good friends traveling to Rome soon and we are recommending this apartment to them without reservation!