It was my first experience with airbnb and it couldn't be better. Francesca is a really good host, she arranged a big,warm and clean appartment for us with breakfast, wifi,tv right near a bus station to city center (15 min). It is a safe and quiet area. Francesca provided us with all information about getting there and was reachable if we needed any help during our stay. She even arranged a taxi for us because we had to leave Milano very early in the morning.
I warmly recommend her as a host, trust her and you'll be happy with your stay in Milano :)