We stayed 3 nights in September. Emma and Victor were very welcoming, even if we arrived late in the evening. Very thoughtful, they saved us a parking spot right next to the building and bought some fruits for us. They are available if a problem occurs and very flexible regarding the schedule.
The flat is really nice and well situated : basically, you do everything by feet. It is next to a really nice area - Trastevere - with lots of restaurants and also to the Capitole and Coliseum. We definitely recommend this place.