The big plus of the apartment is the location. It is within 50m from the metro station on the M1 line which goes directly to the dome, and it's also easy to access the other metro lines. It's a 20 minutes walk from Stazione Centrale (it's easier than taking the metro because you have to change and it takes longer). The neighbourhood is a little shady, especially for girls, but we managed ok. It was somewhat noisy, at night we were woken up sometimes.
The place is ok for 3 people, a little crowded for 4, but they would fit. The apartment was clean (-ish), all the amenities in the description are in the apartment, but we couldnt find the remote for the air conditioning. That was a problem at night because apparently it's a regulation in milan for shutting down the heaters at night-it really gets cold at night and we had to sleep with sweaters on. The hot water is on limited amount, it was sufficient for 3 showers per night.
Overall, it was a nice stay, it could have been better, but taking into consideration the location and the price, i would say it was ok.