I have one. Too long ago to remember what it replaced. I'm in Redmond, Shunyata is based near here, this was back in the beginning and Caelin himself brought a couple over to my place for audition. Still have it. Its on my motor drive, my least sensitive component. Wouldn't dream of putting it on my Herron phono stage or Melody amp, they all get Synergistic. Its not that they're bad, its that there comes a point where you've compared so many of these things at so many price points and seen them all fall short, well, time is money. So until I have a bad experience I'll save my time, buy Synergistic, and spend the time I saved enjoying how great my music sounds with it.