Anyone compared Guerrilla PC's to anything...?

I was recently looking into power cords once again, considering a new cord for my Shanling T-100, and came across the Guerrilla website. Has anyone tried these power cords...? Has anyone compared them to any of the following cords:

PS Audio
Acoustic Zen Tsunami
Virtual Dynamics Signature Reference
Belden Firewire
Signal Cable
Groneberg
Harmonic Technologies

Reviews seem to be hard to come by for these cords...
Here's the site:
http://www.guerrillaaudio.com/power_cable.html