Climbing "Zweierlei" (grade 7) on Treffauer is a challenging and rewarding alpine experience. This route, known for its sustained difficulty and exposed position, demands solid technical skills, good physical fitness, and excellent route-finding abilities. Climbers should be comfortable with trad climbing, placing gear in often less-than-perfect rock, and managing ropework efficiently. The crux sections often involve delicate face climbing and powerful moves on small holds. The views from the route are stunning, offering panoramic vistas of the surrounding Austrian Alps, making the effort worthwhile. Be prepared for potentially long days on the wall and variable weather conditions. A thorough understanding of alpine hazards and crevasse rescue techniques is essential, especially during the approach and descent.