I've stayed in this building before and it's a great location for me. I like this location: five minutes from the Trastevere train station, three minutes from the Trastevere tram, a supermarket and osteria right downstairs, a pharmacy a block away, the daily Trastevere market just across the river, and plenty of restaurants and shops nearby. Street noise can be acute at times, but the windows and doors are extremely high-quality and they block out much of the noise. Be ready for the weekend market in the street!