I stayed in his apartment for a few days. It is a new place - will accommodate two people yet extremely good for one person. It is all very modern from the shower to the induction stovetop. He leaves a number of useful food items along with soaps to make your stay very comfortable. It is located in an old building but all has been renewed down to a very efficient elevator you run with a key. The apartment is close to the Duomo, the canals, and the Castle - all major attractions in the area plus to the shopping streets too.
The host goes out of his way to provide assistance from making sure your computer functions with his internet service run by TIM to telling you how to take local transportation to the Milan Design Expo and to the airport using the subway and train systems of the city.
You will not be disappointed if you choose to live in this apartment. It was one of my best experiences with airbnb. I know it will be yours too.
Walter