We had a fantastic experience at Fabian's apartment.
The location of the apartment is central (25 min walk to The Duomo, and 20 min walk to Central Station). You can take the Malpensa Express directly from the airport to the metro station minutes from the flat. Eataly is right down the street, which was a perfect place for breakfast/lunch. The apartment was very clean, but do note that the bed is quite firm. Communication with Fabian was easy and he made us feel welcome. Highly recommend this flat for your trip to Milan!