The appartment of Raffaele is a good opportunity, we were 4 adults. (2 couples) and there was enough of space.
The beds are confortable.
The whole appartment is clean and functional.
Raffaele speaks good french and english, communication was easy. Metro is at about 15 min by foot, otherwise with the bus line 49 you can reach the nearest metro station (inganni) in less than 5 min.
Good choice to visit Milano. The only negative side is that the street is quite noisy with a lot of traffic, even during the night.