Our stay was great. The loft is cute and cosy. Its location is great for Politecnico di Milano students (Leonardo campus). It also has a great access to the city center since the bus number 61 stops under the building.
The check-in is at 17:00 but Domenico was nice enough to leave his job and meet us at the studio at 13:00 to give us the keys since we got to Milan early.
Everything we needed for our stay was available (soap, shampoo, body wash, towels, bed linens, coffee, tea, biscuits, sugar, salt, pepper, kitchen cookware and essentials, as well as a new washing machine)
Our only cons were that the loft was a bit too hot for us since it's a central heating for the whole building and we couldn't change it to our preference. My friend found the bed a bit uncomfortable. And the bathtub needed a curtain.