We spent 6 days in Milan and not once regretted our choice of accomodation. La bomboniera di Washington is a small but comfy flat, very accessible and provides all the essentials. A clean and and functional bathroom, a comfortable convertible to sleep at night and a small kitchen with everything you need to cook simple meals. We also appreciated the presence of the TV, which can be watched either from kitchen or bedroom/salon, with access to Netflix, Prime video and YouTube.
The only downsides are the lack of a microwave and the electric boiler (the water is very warm at first but becomes cool quite quickly).
As for accessibility, we walked all around Milan without any difficulty. This flat is very well situated, with several restaurants, bakeries and grocery stores nearby.
Finally, Micaela was a very responsive host, she answered right away when we had questions and was always available polite and allowed us to have a wonderful stay in Milan.