I have a friend that has a much better ear than I do and is also an EE so it's always interesting to see what he thinks. I always try to get his opinion before making big purchases. He visited the hi fi store with my wife and I to help me choose between two speakers. At this point the biggest difficulty is that his listening time with my system is very limited so it's difficult for him to hear subtle differences. When I did a Sort Kone demo he thought he heard an audible difference but wished it was easier to do an A/B comparison because the difference isn't immediately obvious. His second set of ears helps separate the real from the placebo.
I certainly have not heard anything negative from them so I have no real reason to change back.
I certainly have not heard anything negative from them so I have no real reason to change back.