This house is fashionably furnished in modern/industrial/hipster style, with old wooden floors, exposed bricks, and steel beams. We found it to be impeccably clean. Check-in and check-out were easy and we did not meet the owners. All in all, this was an egregious 4* experience similar to what you'd have in Shoreditch, London. Well done, we loved it!
A few exceedingly minor issues: the elevator is the _smallest_ elevator I've seen in my life, two people barely fit! We had a small issue with hot water one morning but that was solved quickly and without issue. I loved that we had coffee and a Moka, but we could not figure out how to use the Moka on the induction plate. Finally, the neighborhood gets a bit rough at night: we've heard people arguing and fighting in the streets below multiple times while staying.
Besides these minor issues, the stay was extremely good and we are certainly likely to go back if we visit Milan. Thank you!