This wil be short and sweet. I went from a Tripplite isolation transformer to an Everest with a Sigma XC (also Sigma v1 speaker cables, Sigma v1 XLRs, and Alpha v2 power cables). I bought one used and figured that I could resell it for close to what I paid for it if the hype didn’t match my experience. Struck me as a ridiculous expense for a glorified power strip. After about a week after settling in, the Everest made a stunning improvement in my system. The soundstage in particular had always been wide, but not really deep. I felt that I was missing that 3D quality. Not now. The soundstage is deep and wide, with a black background that makes the instruments not only stand out but are perfectly placed in a 3D axis. Yes, it is expensive, but to me, it provided the missing piece to my system. Forget all of the jumbo jumbo about all the patents etc. Put it in your system and see what happens. I am extremely happy with it and surprised the the hype matched its performance. Can I explain why Shunyata cables sound so great? No. Can I explain why the Everest jacked my system up to another level? Nope. Fairy dust? Who knows? But what I can say with certainty is that it has really improved my system to such a degree that it is, to me at least, totally worth it. Obviously, the better the system, the more you will notice a positive difference.
As an added benefit, I have everything plugged into the Everest and my house got struck by lightning a few weeks ago and fried my generator and my HVAC. Didn’t touch my stereo equipment though!