no, but I had two gungners. One was sent back because of faulty sewing. The other one also failed in the stitches. Got my money back.
I've had a few items from Klättermusen. The packs, two jackets and a pair of trousers. One jacket was a shell jacket that was mighty expensive, it delaminated after a year or so, and it was after the warrenty had expired. The other jacket was an eta-proof jacket that still serves me today. Except one seam has gotten loose, okay after some 5 odd years, I can't blame it. It has been with me from SE asia to spitzbergen. The trousers also delaminated. Got my money back though.
So, my lesson learned, don't expect wonders from Klättermusen, no matter how expensive they are. Sometimes you don't get what you pay for. And another opinion of mine is that their technical details are more of an annoyance than a solution to any problem. I've tried a guy a knows Mjölner and wasn't very impressed with it at all. Not for that price.