Abacus Passive LDR

Anyone tried this?
https://www.audiogon.com/listings/solid-state-abacus-ldr-v2-passive-preamplifier-with-dual-display-auto-calibration-2016-01-19-preamplifiers-28210-charlotte-nchttp://

I use a Lightspeed in a second system and as a back-up to my Doshi.  While not perfect, it's one of the all time great bargains in hi-end.  This LDR adds input switching and a remote.   I know George argues that including multiple inputs will degrade the sound, but just wondering if anyone has ever heard this new product.