Anyone tried Cerious Graphene cables?

[Cycles2]

For my pair of Devialet 200s, I currently use Synergistic Research (SR) Atmosphere Level 4 speaker cables, SR CTS power cords and a Crystal Cable SPDIF for the master/slave connection.  I'm getting ready to order Cerious Technologies Graphene Extreme power, speaker & SPDIF cables.  Note - Bob at Cerious is aware he needs to use a Cardas connector on his Graphene Extreme power cord so it will fit with the Devi's rear cover plate.

Anyone out there tried the Cerious Graphene Extreme cables with their Devialet equipment?