I've only worn them a few days cutting trees, but these boots feel very sturdy and tough.  They're just getting to the point where they're broken in and quite comfortable.  They run very big though.  I wear a 9.5 sneaker, but my feet were swimming in these.  I sent them back for a 8.5 that fits just right, with a regular thin cotton sock.  I'd definitely recommend them, just be aware of the sizing.  Maybe boots in general run large and these are on par?  I don't know, I just know the fit was 1 size smaller than my New Balance sneaker...