I've just had my two pairs of Alt-Bergs refurbished after a decade or so of abuse and I think now they'll probably last longer than I will.
I've never met a firm that pays better attention to its customer's needs. The only slight reservation that I would have is that on slippery rock and similar surfaces, some of the soles that they use give a bit less grip than I'd like, but there are photos on this site of me climbing trees in my walking boots with little difficulty. Obviously to some extent it's swings and roundabouts with wear and grip.
No connection other than as a very satisfied customer.