Thanks for the video, Gábor. I just had done this road within a 5 day trip through the region around with some passes more, valleys and the lovely Achensee some years ago. I remember some different impressions, because there was a special atmosphere of autumn scenery. You'll find my report with a lot of pictures in Königssee-Zillertal Roundtrip 2007 (day by day, in German). Please notice, the day of Zillertaler Höhenstraße was the 2nd October. I had taken the whole route from Hippach to Ried. I combined this trip on one day with Gerlos pass (old road), which is a steep and scenic climb, too.