Very nice appartment, close to the Navigli river, where all the nice bars and restaurants are. Also the Duomo is not too far, about 20 minute walk. The appartment looks nice, a little bit smaller than we expected, but we actually didn't need more. However, the bed sofa is a little hard and the bathroom wasn't really clean. But furthermore, we had a really great stay :)
Oh, and the wifi works great!