Good points:
Great location, close to Milano Centrale train station, Repubblic metro stop, 2 grocery stores and many restaurants
Susanna always followed up with any questions and asked many times how things were going. She was a gracious host.
Apartment was very large and fit 4 very easily.
Apartment was nicely decorated.
Not as good:
Some appliances were a little hard to use, such as washing machine (it seemed to keep cycling over and over).
The shower in the 2nd bath needed a new faucet, but I think that Susanna said that they were fixing it after our stay.