Bryan
"Phenomenal experience hiking the donnerkogel via ferrata. Wolfgang is an awesome guide - he was born in the region and grew up in the mountains year round doing just about every activity you can think of (seriously, ask him) so you know you're in super safe hands. Interesting to talk to, great at gauging & adjusting his guidance to your comfort/skill level while on the via ferrata, and great photographer as well, as others have mentioned. Dip your feet into the lake with a cold beer afterwards for the ultimate finish. "