First off, the location is great, 2 steps from Brera and its lovely atmosphere, nearby the Metro (Moscova) but also a short walking distance to the very heart of Milano (Duomo). The flat, which seems newly reconstructed, can comfortably accommodate 4 people, with an extra couch in the living room when needed. There are 2 bathrooms, which is absolutely great. An amazingly equipped Tesco Express is located 10 m across the main entrance of the building and works 7-24 on a daily basis.
The one downside worth mentioning is the fact that when visiting in Autumn, and the central heating is not yet on, the lower level of this duplex flat is mostly underground (this is not mentioned in the description), and frankly quite cold. While this must be amazing during the hot Milanese summer days, when the temp at night drops to the lower teens it is quite felt.
I would like to take the liberty and suggest to the hosting company to put an extra hand soap and toilet paper roll in the upper bathroom, and maybe check the cleanliness of the extra pillows and duvets, especially when they charge as much as a 4* hotel.
Would totally book again, for a more adequate price.