Seeing this mountain from Saentis a few times, I figured it was finally time to give it a shot. I took a van (small town public transit can be strange sometimes) from Walenstadt partway up the hill to Walenstadt, Stauffacher. From there, it was two hours of straight uphill through first trees, then steep hills to the summit. The view from the top was pretty spectacular, offering an unobstructed view of the Alpstein massif to the north and whatever mountains are in every other direction.
I tried running back down, first east the Sattel, then south and down once at Nideri. The first chunk was a lot of fun to run, minus one minor tumble; I may have overestimated my knees endurance though, and had to take it easy for the last hour on the descent.