I am just using the stock issue cord with my Ikemi. That is not to say I can't do better, but right now I want to spend money on upgrading my cartridge to an Akiva. I will say you should not spend any money on a better power cord unless you have already have put in dedicated lines (best if one for amps, one for sources). The dedicated lines will cost less than $600, and will do FAR, FAR more for the sound of your system (in most cases) than a power cord upgrade.
I leave all my solid state stuff on 24/7.