OP,
In response to your original question, I am not going to say whether a cable should make your system warm or cold or clinical anything else. If anything, it should make your system more musical and make you want to listen to more music.
I heard a big difference in my system when I changed from my previous speaker cable to the current speaker cables. My system needs all the gain that can be extracted to the last iota. I do not know why, but I GOT this gain in my system and it sounded fabulous. I can explain the FIRST time I experienced a gain - it was because I moved from RCA to XLRs. But the SECOD gain was by simply by changing the loudspeaker cables - and that too surprisingly from bi-wiring to single wire + jumpers.
Whatever happened - my system is more musical now than what it was before. I think YOU should listen to the system in which the new cables re introduced. The reviews are just to get you started. There is a 100% chance that you will completely disagree with the reviewers - both professionals and regular users.