We where staying 5 nights at the apartment(me and my dad). The location is the best! A quiet apartment at the middle of Trastevere. There is lots of great locals bars and restaurants at this area. The apartment is a 20-minute walk from most tourist attraction and a 5-minute walk from public transport. We received a clean and well-equipped apartment(Bed linen, blankets, enough towels for each, a large closet with a full place for hanging clothes,there was always hot water, shampoo and a fully equipped kitchen). Pietro was great host and answer very quick to all of my questions before and during the stay in Rome. The two things you need to consider are that There is no elevator and the building is very high and there is three big stairs to the shower and toilet(not something that bothered me but could certainly be a problem for older people).
In conclusion, I highly recommend this apartment!