Almost straight out of the box three cables died, after just som light usage in the rehearsal (basically installation). However, those that did not die are still working, spare one.
I would say these are great if you are trying new gear/pedals when searching for that perfect sound, and you get 6 for the price one 1 "premium" cable. However, i would not trust nor rely on these alone in a live situation. I did a 10 day tour across europe with these, abit bold i admit, but i had 2 spares for every one used in case of anything, which of course adds to travel weight. They all survived.
Still, i do not trust these completely. I do not feel "safe" in relying on them, but i do use them all the time but with plenty of backup.