My family and I had a great stay at Marcos' place during the Monza F1 weekend (- we recommend getting a taxi there.. about €50)!
The apartment was large, clean and had all the amenities (pans, soaps, plenty of bedding etc.) you should need.
There is a lovely courtyard with fishes in the fountain that lead to an old narrow lift to take you up to the 4th floor apartment.
Breakfast on the balcony overlooking the hustle and bustle of the Città Studi area is a must.
It's about a 20 minute walk from Milano Centrale with Lima metro stop (red line), around a 10 minute walk in between, able to take you anywhere in the city (€1.50 per 90min trip).
Lots of nice restaurants and bars within walking distance, or there is a large supermarket around the corner (or a smaller 24 hour supermarket behind the apartment) should you wish to cook!
We were met by one of Marcos agents to check us in and out, and answer any questions you might have - very easy!
Overall great apartment and would recommend it should you be visiting Milan!