Sonia's place is much better than the photos you see on Airbnb. The place is nicely furbished and it is very cosy. It also has a nice view from the kitchen balcony. Everything is perfect for us, the Wi-fi, TV, air-con, dishwasher etc.
Apart from the place, Sonia and Marco are 6 star hosts.
We drove from Florence to Milan and when we arrived, Marco (Sonia's husband) was waiting for us. Marco is able to speak English thus he is the one who will liaise with you if you cannot speak Italian (like us). He kindly helped us to unload our bags and brought us to his garage. The garage belongs to them so it is very safe and it is also free. The only thing is that the garage is a 5min walk from the apartment but it is not an issue for us.
Marco and Sonia went through the check-in procedure in detail with us and were very kind and helpful in answering all our questions. I was already contacting Marco even before I was in Milan and he was really patient with all my questions. He even offered to help us settle the ZTL issue with a small fee of 5Euros (which is paid to the traffic police in Milan for entering a restricted zone).
In short, Sonia's place is perfect for 4-5 travellers and especially for those who drive as there is a free parking at their garage. This is indeed a perfect apartment with 6-star hosts.