It's hard to say by reading just how good or mediocre these cables are. A cable's main job is to do no harm, but reading that these cables can do the following, "the tonal balance is more correct"(according to an above poster) just makes me shake my head.
More correct according to what, your other system? Your friend's $100,000 system? Because if you're basing it off your non Cerious Technologies cable sound, then you've got no base line to compare, and you're going by hearing memory and your own biases. One can not conclude anything from your results except that your purchase bias may be at play.
And these Cerious Technologies are anything but cheap. $5-700 for the entry level lengths, to well over $1000. Most people don't spend that on their speakers! Spending it on cables when you've got entry level gear is pointless, you will get no improvements.