Anyone switich to all Signal Cable wired system?

Recently a friend of mine replaced all of his cables (power, interconnects, speaker, digital) from a combination of cables including at one time top of the line models from Synergistic, Audioquest, and VH Audio to an all Signal Cable system following Frank's advice. The results were astounding. His system improved in every way that I could report in audiophile jargon. I'm now contemplating doing the same. Anyone else experimented and found similar/or not results?