We only have the most positive things to say about our experience with Piero! He is a fantastic host - gave us so many tips about the area, was incredibly thoughtful to offer coordinating travel from the airport, and helped us call a restaurant to confirm a reservation. The space is absolutely lovely with great amenities including a spacious common space, two air conditioned rooms, bathroom with plentiful hot water and fresh linens, and a well-stocked kitchen for a morning espresso. The apartment is on a quiet street but very accessible to the lively areas of Trastevere. Would certainly recommend!