I'd 200% recommend Marinella's place if you're looking for a clean and comfortable place in Milan. Her house is sparkling clean and you can even use a fly screen net in the window. It meant a lot to me as I'm really afraid of bugs (there are not many bugs tho)
Location is good. It's not in the centre of Milan but you can take the bus (no.58) from the Metro station (Bisceglie M1) and it only takes 5 minutes to the front door of the house. If you're looking for a very central area this house is not an answer but if you prefer to stay in a residential area which is quiet and safe, it's definitely an answer. Book it!
Also, you can buy everything in the Iper co-op which is 5 minutes from the house by walk. That superstore is really huge and opens every day.
Marinella is a kind and accommodating host I've ever met. I would stay at her house ​the next time I visit Milan.