We very much appreciated checking into Flavia's apartment shortly after our morning flight arrived in Milan, allowing us to leave our luggage to explore the city in the few hours available to us. At the little keyhole door-within-a-door we were greeted by a delightful couple who gave us instructions in Italian, easily communicated even with our severely limited Italian language skills.
The narrow balcony on the street side is pleasant, the en suite bathrooms are convenient -- and the air conditioning and wi-fi worked well. The trundle bed wasn't ideal for two adults, but except for being rather squeaky it was fine for one night's stay.
Piazza del Duomo and Piazza della Scala are easy walks away, as is La Rinascente if a shopping "mall" is of interest. Within a bit farther walking distance is the fascinating and historical sculpture garden of Monumental Cemetery.