Great location with excellent food options nearby (Poporoya, Spontini, Consorzio Stoppani), 30' walk to the Duomo .
Very quiet, great sleep-ins.
It would be perfect with some minor enhancements (provide clean towels, a new bulb in the toilet, a kettle for a tea, instructions for local attractions and washing machine location/use, throughout cleaning of the fridge between guests so no leftovers are found)
If you have a car, free street parking can be a challenge, take into account 22 euro/day for street parking and 35 euro/day for a garage, like all the downtown Milan area.
Communication with Martina was excellent