We stayed at Roberta's apartment for 3 nights, it was a very good and comfortable stay, Roberta replied promptly to our queries before check-in and met us when we arrived, the apartment is spacious, very clean and well made with all facilities that you may need during the stay. The traffic noise can be bit bothersome if one is not used to it, but we did not have much problem. Metro station, colloseum and termini station are walkable from here. We strongly recommend roberta's apartment!