Surprisingly big apartment in a fantastic location. Easy walk to the Duomo, the Colonne di San Lorenzo, the Parco Sempione, and other sightseeing locations. Shopping on Via Torino is also great if you want to get some decent deals. Lastly, there's easy access to metro from here.
Something to keep in mind: the small streets off the main roads don't always have sidewalks! Not really a problem, but if you have a big suitcase it could be an unwelcome surprise. Personally, I love tight, cobblestone alleys, but may not be for everyone.