If you want to stay in the middle of Milan's "cuadrilatero de la moda" then this is a great apartment. It was the smallest apartment we stayed at during our two week trip, but it was very comfortable.
It's on a third floor (there is an elevator) and you have plenty of sunlight because it looks over an internal courtyard. This gives you fresh air and sunlight, but it also shields you from out door traffic and city noise.
Filipo was very attentive and accommodating. He allowed us to check in early and check out late and we greatly appreciated that.
The apartment is perfect for two people and even though we were 4 people, it was also comfortable. The only issue you will run into, if you are more than two people is that the hot water tank is a bit small so you don't take that into consideration when taking a shower you can end up running out of hot water. The easy way around that is to turn off the water while you soap up and then turn it back on to rinse. This way we were able to keep from running out of hot water again (we ran out the first time because we didn't know).
Other than that, the location is perfect. You can walk everywhere and you have two different subway lines that are nearby. I can't think of a better location than this one.