Hear the difference
If you buy a Glockenklang amp, you will get one of these thrown in. Glock's Hi-End cable is so good, I bought an extra one as spare.
I compared (A/B'd) this to other cables and tried it with other amps. I was surprised at how clearly my ears could detect improvements in the overall sound. The low end, mids and highs were all much clearer. Not sure you'll notice so much on a loud gig but definitely in a studio/home setting.
If you are using quality gear, make sure you use a quality cable.