I recommend Federico’s place for 3 reasons:
1. Convenient Transportation. The house is 4 mins walk to the metro and from there it takes 10-15min to get to the city center.
2. Clean and comfortable room. The room is very cozy with wooden furniture. The window is toward the yard and at night it is very quiet.
3. Federico is a very nice and friendly host. He responded to my messages quickly and offered to give me useful travel tips and notes during limited time of visiting in Milan.