I cannot say enough about Marin's hospitality. He is beyond a 5-star host!
His place is located a few blocks from the Metro and within a half hour walking distance to the Duomo. The bedroom and bath are clean and the bed is super comfortable.
If you are visiting Milan and want great value, stay at Marin's place. If he is not there, you may not get the orange juice and pastry in the morning like I did, but you can be assured of a great place to stay.