We stayed in the flat for 4 days in December. The communication with the owner was really easy and he was very reactive.
The flat is very well located, 15min by foot from the station and 20 min from the duomo.
The flat consists in a main room (with the bed) and a bathroom. There is a boiler and some cups to have some tea or coffee. There is a small cooler available if needed to store some food.
If you plan to stay for a long time bring some cleaning products / detergents because there are none in the flat.