The apartment was very spacious for 2 people. The bedroom and living room were pretty big. It's also very warm, I didn't need to turn on the AC for heating at all during my stay.
It is pretty close to the main tourist areas. Piazza do Duomo is a 5 min walks, also very close to small local stores to get what you need. However, the location can be a bit sketchy. I didn't have any issues but you do see some weird people walking by and some cars had broken windows a few of the days I was there.
Overall, I did like my stay. Salvatore was super nice and responsive, the apartment had what I needed for a long stay.