We've stayed at Paolo's apartment just for 1 night. However, it was quite nice:
1) Its 20-25 minutes away from the city centre by metro and 60-70 minutes away from the airport, which was definently good. There is a supermarket and few cafes nearby.
2) the apartment was very clean and prepared for the arrival. There was everything we would need as well as some fruits, nuts and other foodstuffs.
3) Paolo greeted us with his wife during the check-in and showed everything around the aparment.
Overall, it was a short but pleasant stay.