I don't know what to say, the only word that comes to my mind is perfect !
The apartment is small, that's a fact but everything has be done to use the space as its best. The sofa bed is comfortable and fits well two people. The place has all the equipment you could need : great wifi, tv, fridge, air-condition (it can be hot in Milano and it works well) and an amazing view (from the room AND the roof). Subway station is in front of the building and in less than 10 minutes you're at the Duomo. Carlo Alberto is a great host, always smiling and really flexible so thank you !