We stayed for two nights in Corrado's apartment and we couldn't have been more satisfied. Really nice and cosy place in the heart of the city. The location is ideal (15m walk from the Duomo and 10m from the Navigli canals), we didn't use the metro at all. Corrado really helped us with everything we needed, especially with the car parking issue, which is a really complex matter in Milano. Be aware that you have to pay an extra city tax (occupancy tax) during the checkout.