The apartment is huge! While we stayed at Emilio's, there were two other guests there, but there was still plenty of space. The kitchen is well equipped, we cooked dinner a couple of times, and really enjoyed the balcony :)
Emilio and his wife are both very nice, when we arrived in Milan, they picked us up in their car, and, even though they don't live in the apartment themselves, dropped by everyday to clean the place.
The flat is located in a building a couple of metro stops away from the city center, but public transport is very reliable and multiple bus and metro stops are within reach.
Overall, we had a very pleasant stay!