Lorenzo is a super friendly host with plenty of tips on how to get the most out of your trip. The place is tiny but very cosy and has everything you'd need. Heating works very well.
The building is located in a very pleasant district, with lots of late-night restaurants and bars around. On foot it is about 15 minutes from the Duomo.
Overall a great experience, I'd choose it again if I were to come back to Milan.