The Route is amazing! Was the Perfect Season for it since the part above the partnachklamm is usually really crowded. Today I had to wait only a few times on the downhill. At the part above the trees it was really windy, made it easy to start with the downhill after a short break.
Unfortunately my watch found a GPS Signal only on the top, but I also added the strava link of Christoph who supported me to verify I did the exact same route up and down.