Completely agree with Mark Kelly's opinion. Stelvio is a breathtaking scenery with regard to road construction, but from the driver's perspective is more or less annoying. Taking into account that were are not much other passes in the near, it isn't worth the way. If you are about to go to Italy, then focus on the Dolomites area, where a huge bunch of passes is offering incredible pleasure. And if you want to know my favorite way getting there, start in Reutte (Tirol, close to the German border) and ride via Namlos Tal, Hahntenjoch, Passo Rombo (Timmelsjoch), Passo Giovo (Jaufenpass), Passo die Pennes (Penser Joch), Ritten, Passo Nigra (Niger Pass) which all together takes a day. And then, you are in heaven!
However, Stelvio is a sort of must-see. If you want to do it, then plan your ride early morning or late evening (before sunset).Otherwise, you will get lost in a crowd of bikes and bicycles.Andermatt, I didn't try so far. I dislike these silly Swiss speed trap maniacs. Met a Swiss Lotus driver at Stelvio, who told me that he is alway heading east to Italy to have fun with his Elise.
Anyway Chris, when is your trip?