Andrea’s place is in an awesome location in Navigli. As other reviewers mentioned, even though it’s in a busy area, the apartment itself is quiet. Which was great during Milan Design Week - probably the busiest time to be in Milan!
Only thing I would caution is, if you are thinking of staying there as a group of 4, the sofa bed is not the most comfortable sleep. I fortunately slept in the bed - which was very comfortable, but our friends mentioned the sofa bed wasn’t the most comfortable :/