We had a only a short stay in Mailand, but staying with Cinzia was the best decision we could make.
The apartment is located in a 15 min walking distance from the central station, so it was quite convenient for us to take a train from Malpensa Airport and have a little walk. Make sure you check out the train tickets online (it's only 20 euros for a return ticket).
Unfortunately we could not meet Cinzia in Person, but communication with her was very easy. She answered within minutes whenever we had a question. In the beginning we were very confused about the check-in system, but do not be scared it is very easy to use (but you need a internet connection to use it).
The apartment is located very central and there are a lot of nice restaurants in a short walking distance. We had breakfast in a Cat Café closeby, which was a funny experience.
The apartment has everything you need for a short stay in Milano, even a coffee machine and a fridge. Be aware, that there is no kitchen in the apartment.
All in all, we would stay with Cinzia again, whenever we come back to Milano