Trastevere is a lovely area and Alessia's apartment is very well located, spacious and well-equipped. It's possible to walk to many of the main sites if you're feeling energetic, and there are buses and trams nearby if you're not. As is clear in the description, the flat is in the basement - there is a wonderful brick vaulted ceiling but not a lot of natural light.

Alessia's friend Olivia was there to welcome me as arranged and everything went very smoothly.