Graziano's apartment is a real gem, full of character, with tall ceilings, walls covered in paintings, and the church of Santa Croce marbles outside the window. The bedroom/living room is large and bright, there is one bed and one pull-out couch, both large and comfortable. Bathroom is great with a powerful warm shower, and kitchen is fairly well stocked.
The location is great, a few coffee shops and bars just outside the door. There should be two pizzerias as well but they were closed during our stay. More restaurants and shops down the street. There is a great park with lots of playgrounds about 5 minutes walk away. Bus stop is about 2-300m away. Note that the apartment is on a fairly steep street.
Other travelers reported the noise from the street. We did not find it excessive, it's a busy city after all. Closing the shutters also helps. Church bells will ring around 7.30-8AM though.
Graziano is a great host, he sent lots of suggestions for restaurants and sightseeing.