Amazing place and an amazing location. You are right in the heart of everything with Jacopo's apartment. Once you leave the apartment, if you turn right, you'll be at the famous Duomo in about 7-10mins walking. If you turn left, you'll be in the bustling Navigli area with a lot of nightlife and bars in the same amount of time.
Whichever way you choose, there will be no shortage of shops, restaurants, bistros and stores along the way. It's truly in a perfect location.
The apartment itself has everything you need. It's on the 2nd floor of the building, but there is an elevator so it's not a problem if you dont feel like taking the stairs. No issues with the bed or any of furniture being too old or in bad condition. In fact, it all seemed pretty new. All the appliances and amenities worked just fine as well, so no need to worry about there not being hot water or bad wifi.
As for the host, Jacopo's friend Guilia met me and greeted me at the apartment, even though I arrived around 20:30. It was very easy to communicate with them and Guilia was very responsive. Even on the day I was supposed to check out, they gave me an extra hour as there were no conflicts with the scheduling.
Overall, I absolutely recommend this place and will surely look to stay at their place when I visit Milan again.