We rented Michele's apartment for one night upon arrival in Milan. We arrived at Centrale from the airport, so this place, so close to the train station was perfect. No need to take a bus or metro to get there, just a stone throw's away from the station.
It is in a busy area, but being on the top floor, the noise from the street isn't bad at all. Plus, with air conditioning, you can just close the balcony door and sleep very quietly. The apartment had everything we needed for our short stay, including a hair dryer (really appreciated by my wife).
Michele's instructions for self check-in were very clear.
I would not hesitate to stay here again for a short stay.