There's an old adage that goes, beauty is in the eye of the beholder, and for me Milan Cathedral has one of the most beautiful west fronts of any cathedral I've visited.
How anyone can stand before Milan Cathedral and not be blown away by the sheer size and beauty of the building is beyond me. I'd say it's much more impressive than, for example, Westminster Abbey that looks like a Gothic tick box of building style.
Milan Cathedral is different and it was different a long time ago, it bucked the trend, it dared to be different, it did what cathedrals are supposed to do, it wowed people, it made them feel that here, was a special place. A quick check on Wikipedia describes the building as groundbreaking and I totally agree.
Of course it has changed, evolved over the centuries to the building we see today but that's no bad thing, what we see today in the culmination of artistic ecclesiastical architecture in the most cultured country on the planet.
Really, if you can't appreciate the greatness of this building then maybe you just don't understand architecture. Give it a full listing UNESCO, what's wrong with you?