I've finally worn these out after at least a few hundred miles bagging peaks in the Wasatch - they're a little heavy but comfortable.
They offer a lot of protection in talus on the instep, the soles are stiff enough to not let sharp rocks etc bother the bottom of the foot yet enough 'feel' for stability.
They're still together, just most of the traction is well worn & I like steep trails. Longest hike: Cascade-Paintbrush canyon in the tetons - 19.5 miles IIRC.
(I got the brindle brown, all leather, both times).
I like 'em. They're stiff to break in, but they're pretty soft compared to ski boots.
Took 'em up mt olympus the other day, they had great traction in dirt, mud, granite, snow, etc, both steep uphill & downhill. I just bought my 2nd pair so I have a new set when these wear out.
I don't like the design of the handle for a portable unit. Every time you want to use it you have to pin the handle to the plunger or risk breaking the handle.
I exchanged this for the katadyn hiker pro