I've tried their Ribbon interconnects and Digital SPDIF...whatever their top ones were at the time (about 8 years ago or so).
I really like the Ribbon interconnects...great transient snap, great midrange, and bass slam I hadn't heard from my (at the time) midlin' ICs. But, they are very, very fragile and eventually I traded them out.
The digital cable had similar characteristics to the interconnects. Also very fragile.
And, in both cases, because there is effectively no insulation on the wires, it was very, very hard to route the cables so that didn't pick up any manner of noise.
In a nutshell: nice sound, but too fussy.
I did try one of their power cords and it shorted out, fried my amp fuses, and put a lot of nasty smoke into the air. They refused to repair/replace, so I never bought from them again.