I'll admit, walking to the flat, I got a feeling it was well out of city center, but the more I explored the more I realized it is right in the middle of everything... just perfectly placed in a quiet neighborhood.
Naviglio Pavese is right around the corner and is just a vibrantly, beautiful part of town. I preferred San Agostino metro for ease of access due to construction from San Ambrogio. Everything is a quick metro or streetcar ride away.
All of this to say apartment is so good you could easily spend your stay with the windows open, soaking in the tub, as you launder your travel worn clothes.
Absolutely worth it.