I have hiked it several times in summer and winter from Pemmern and from Schwarseespitze. We used to spent our family vacation there often when I was a kid. Great views in all directions!
Took the chair lift to Schwarzseespitze and hiked to Rittner Horn with the ugly hut and antena on its top. The Dolomites view is wonderful, though. Headed on across Villanderer Alm and climbed Totenrücken and Villanderer Berg. Upon return we barely missed to climb Rittner Horn again.
I took the cable car from Pemmern to Schwarseespitze and walked the rest of the way up. The views of surrounding Dolomite peaks make this easy summit worth while.