The apartment was amazing. It is newly renovated and super neat. Supermarkets and a tram station are near it.
The internet connection is great. You won't have any issues with it.
Simone was an amazing host. He gave some tips on how to get around Milan, and also gifted us some pasta and wine.
Note that self check-in is not possible, but face to face checkin is not a problem at all, since getting to know Simone was great and made us feel at home! :)