We stayed 2 days in Davide's place and it was a great experience. The apartment was good, the location is fine (~20 min walk to the Duomo, a few good restaurants nearby).
Davide was very helpful during the whole stay, either by waiting for our late check-in, or by providing good information.
The only downside was that the air conditioning in the bedroom wasn't functioning properly. Hopefully, it was the end of Summer and the weather was pleasant.