Olimpia's apartment was exactly as described in the pictures: modern, clean, spacious, well furnished and had everything one could need in an Airbnb. The residential neighborhood Trastevere/Gianicolo is super nice: calm, but close to good restaurants and bars. To get to the historic centre you need to take the bus, but there are several bus stops close by.
Communicating with Olimpia was easy and the instructions she gave were very clear. We would stay here again and can highly recommend!