You're right about lightweight. It's like going from a super lite pole to an aluminium pole.
I got 7 years of dry feet from a pair of berghaus goretex walking boots, before wearing out the soles. Bought them in 2001. But I wouldn't buy them again. Too heavy and they squeaked when I walked. I didn't like the soles either. They didn't grip well on wet surfaces. Paid £100 for them.
Going through the soles in under 2 years is some going. Is that through normal wear and tear or have you really worked them?
I was having a look at the gtx boots last year was thinking of buying cos they looked like they ticked all the boxes. But were so light I wondered if the stitching would hold if hammered.
I bought some rockport goretex hiking boots in 98 for £125. They were unbelievably good. Feet temperature stayed the same in 30 degree summers to minus 15 winters. Very light, Walking in them for 24 hours solid and feet didn't smell at the end. I've looked at rockport shops and haven't found the same ones.
I hammered them daily though and the soles wore out in 3 years.
Stitching and leather is just fine. I've used them every working day, winter and summer, rain or shine. Great in snow too. I've heard other people go through them quite rapidly too. Apart from that they are great.