I use a couple of these for a home studio - and the build quality is beyond what I need. With careful use, and in the absence of constant re-plugging these will last years.
I'd say these could go out with amateurs and handle a fair amount of unplugging and re-plugging - the usual wear points are reasonably well guarded. This feels like quality build.
As far as sound goes - if you're of the opinion that cables have a significant effect on the quality of sound, these are for you.
For the price and quality of these cables, there's little point playing more.