A group of 8 friends (mid 20's M) stayed here during our Milan visit in mid-October. Overall a decent impression. The apartment is located at a great place, and with multiple bus stations, tram stations and a taxi central just outside the door, it was easy to get around the city. There is some noise from the streets below, but the apartment is located on the 6th/7th floor, so you don't notice it too badly.
Communication was a bit bad, as I only received a message after sending a message on WhatsApp, waiting a long time for an answer on Airbnb. There were also different people answering on Airbnb than on Whatsapp, but I figured after some time that Whatsapp was the way to go. I believe this is due to the company running the apartments having different people responsible for different things.
Regarding cleaning, all the rooms etc. were nice. However, we found that all the frying pans were dirty when we wanted to use them.
I was also only given 1 key to the apartment. This was not that nice, as having 8 people always coordinating where leaving and arriving at the same time is not that easy. Luckily for us, we did everything together on that trip.
Lastly, I had arranged for us to leave at 11:00, but the cleaning people showed up at the door at 10:25 and asked us to leave. However, they waited politely when I told them that we wanted to stay until 11:00.
Overall, this was a great place for us to stay in Milan. However, we are a group of friends who are not too picky and we all value location and space higher than other things.