Here we go again. Some people tried, like a few, not dozens so there is a lack of experiential feedback. 

I have Hemingway’s latest entry level Z-core Alpha power cord and speaker cables. These cables sound like no other cables I have owned (Synergistic Research, Purist Audio, Tara Labs, Transparent Audio,Triode Wire Labs, and several others). So much energy to the sound without undesirable artifacts, harshness, thin-ness, bloat, or glare.

The review the OP linked in his opening post accurately describes their sound.