I have come many times to Principe di Savoia for business purposes and each time was a great stay. The service was impeccable, the rooms were big and clean even tough the furniture style isn't really my type.
The buffet breakfast is one of the most alluring I've seen and so delicious with only fresh products. The outdoor terrace is very nice during sunny time to enjoy a drink or take diner.
Also one of the place to be during fashion weeks where you can meet all the international star scene