Rossella's apartment is very easy to find, cosy and we really felt at home. She is super helpful and gave us tips for eating and grocery shopping etc. She also gave us very good directions to her apartment. The only negative thing is that her windows aren't soundproof at all and she lives by a big street so you can hear cars all night. But with earplugs or if you are used to it, it's no problem.
There is a small and fairly expensive supermarket 2 min from her apartment, where you can get what you need.
We really had no problem with getting to where we wanted because every tram stop is so near and easy to find, she lives in the centre and by the Navigli, which is perfect. I would really recommend staying there, it's not expensive and you get a welcoming, open-hearted roommate for a few days (: