People's opinions that I respect like the Anti-Cables. One of my customers replaced his big money speaker cables with them. I haven't heard them, though. BTW, measurements do not tell the whole story, as we don't know how to measure all of the things that we can hear. Our best measurement tool is still on either side of our heads.
One of the reasons I don't publish the measured spec's of my cables is for very reason above. Yes, they measure just as they should,just as I designed them to and measure as good or better than anything else, but measurements don't tell people how things sound...not yet anyway. All they tell is that if there is an egregious error in design and most products offered today by any well respected company are probably well designed.