Chiara's apartment was the perfect choice for my 2-night stay in Milan. It is right outside a stop of the 1 Tram, which goes straight into the city center and onward to the central train station. The walk from the apartment down to the castle and into the city center was also gorgeous. There are a number of nice restaurants nearby which didn't break the bank, and I really liked being right across from a grocery store.
In terms of amenities, the apartment has a well-equipped kitchen/dining room with great sofas, a good bathroom with a nice shower and a bidet, my bedroom had two small beds which were comfortable and a fan (which was great in the heat), and there was a cute outdoor patio with a table to sit at off of the bedroom. The building had a locked gate and a locked front door, so it felt very secure. There's some noise on the street from the tram going by once in a while, but the bedroom was far from the street so I was never disrupted at night.
Chiara was so kind when I checked in, I dropped off my luggage at 9am and she allowed me to have the key then even though it was much earlier than the check-in time. Her daughter helped to translate between English and Italian for us. They are wonderful hosts! The checkout procedure was extremely easy as well.
The only thing that was spotty from my stay was the wifi, my laptop connected okay but my phone had a poor connection and would disconnect in some places in the apartment. This wasn't a big deal and it certainly would matter less if you have phone service / data in Milan - I like to be a little disconnected so I don't use a SIM card. Everything else about my stay was perfect, and I highly recommend Chiara's apartment.