The apartment is on the east side of the city center, about 4km from the Duomo (as roughly the center of the city). It should be a nice walk when the construction along Viale Argonne is complete. Transport is straightforward, with the #54 bus and the #5 tram being the closest, and running frequently. Commuter rail stations Forlanini and Lambrate are nearby as well.
The construction is a bit dated, and the walls are a little thin. Fortunately, my floor was relatively empty my first few days. The elevator is especially dubious, groaning like a whale every time it starts up. In fact, they recommend not using the elevator at night, when no one is at reception, but no one followed that recommendation.
It isn't entirely clear where to go when you arrive for the first time. When they buzz you in at the front gate, you'll walk about 100 meters, first bearing right, and then reception will be down a little hill to your left.
The wifi wasn't working on my floor for the first day and a half (my first full day was a Sunday), but it was fixed Monday morning. The problem was fixed satisfactorily.