Overall pleasant stay at Sergio's place. The apartment is well-located and close to all necessary amenities, shops, restaurants, bars (Navigli canals) and from a walking distance to Milano main attractions. It is comfy, clean and well-equipped (dishwasher, Nespresso machine, washing machine...).
On the other hand, we've been particularly unlucky with the condominium as we got blocked one night in front of the main door on the street and one night in the elevator :/ Also the key is hard to remove from the flat lock. Though, I'm confident that the owner of the building will figure out these maintenance issues and that it won't happen again. As we experienced this, Sergio was rather quick to provide support, even within the night time.