I didn't find it beautiful at all. We are in Italy, we have thousands of square you can really call beautiful and unfortunately Milan has only a few of them.
That square was nothing more than a car parking lot until a few years ago. Then they removed the cars, but the square was clearly missing something. I'm not saying it was missing an Apple store, but at least some trees, a sculpture, some more benches...
This picture was taken 10 years ago
http://www.panoramio.com/photo/5150877#
And that's from the 70's, such an ugly place
http://www.giovanardilex.it/wp-content/uploads/2015/04/curiosita_3.jpg
Then they decided to remove the car and that's how it looked before they began working to the AS
http://anssa.it/webimages/img_700/2014/5/2/3d90a917da58c8eb3d681f9e32a2a971.jpg
Improved of course, but nothing special.
I wish Apple had decided to open the store some years ago, it would have overhauled the square before the town hall did and we'd save money.