Good: great location - a few minutes from Naviglia and a comfortable, pleasant half hour walk from the centre. Nice high ceilinged building.
Be Aware: previous airbnb guests have obviously made residents uncomfortable through noise. There is a notice pinned up right outside the flat. We are a quiet family so this didn't affect us, but if you are planning to party, definitely *not* the place for you.
Not so good: Little problems. 20 minute wait at the door for check in. Heating and hot water went off because of lack of water in the system. (We solved that ourselves). Bathroom door won't shut, bedroom door sticks. None of them disastrous problems, but it would have been nicer without them.