We only had one day in Milan but it may have been my favorite city in Italy. We got a car service (we used a company called Blacklane and would highly recommend using them) to take us around and although it was a bit bougie I must admit it felt pretty fantastic. Don’t worry though Milan has Uber so its super easy to get around!
We booked our tickets to Italy only a few weeks in advance, so we did not get tickets to see The Last Supper mural. It literally gets sold out months and months in advance, so if you are going then this should be one of the first places that you book!
To sum it up, we were only there for one day and made the most of it. I would have liked to stay another day or two. Most people I talked to said Milan was one city that you could skip, but I definitely did not feel like this. To be fair, I love shopping and can be a bit bougie sometimes so I loved all of it! Hope you found this helpful!