Best road ever for riding. Alps are nice but I´m not kidding, this is something extra. It was hardest race of the World(https://en.wikipedia.org/wiki/Targa_Florio) and it is really hard track to ride. Be prepared for nice pavement, except closed road(you can use them anyway, same as locals), flushed down and missing road(sometimes missing half of the road, sometimes is road suddenly half meter down). Scenery is really beautiful. Except one straight there are mostly curves, curves and more curves. This is the only pavement road that I was physically tired at the end. I suggest you to drive some supermotard or funbike and it´ll be hard to wipe that smirk out of your face at the end...
It´s quite sad that nobody is promoting this in the same way as Grossglocknerstrasse or Nordschleife