Stillpoints - snake oil?


Anybody here using Stillpoints Ultras? My dealer thinks highly of them, but I am very suspicious.
128x128thyname
I bought them through Tom Port of Better Records.  Until I found the Stillpoints, I purchased four pillows.  Mine our Homedics, Inc. brand from Keego Harbor, MI (so it says on the pillow).   https://www.overstock.com/Bedding-Bath/Homedics-Buckwheat-Pillow/6602/product.html  out of stock.  I'm sure there are others which could function similarly such as https://pillowpicker.com/best-buckwheat-pillows/  with multiple sizes and densities.  Or phone/write Tom Port for his recommendations.
@david_ten 

I don't really know how to describe it without sounding like the sort of religious zealot that people who advocate for these things are stereotyped as.

Using general terms, I'd say detail and focus are most impacted. Things are more realistic and engaging. (I know that sounds insane.) In my system, the difference was not subtle. Sounds became holographic. People have complemented my "center channel" despite there clearly not being one.

I would consider buying more (and upgrading the ones I have), but despite my enthusiastic patronage, I'd hesitate to recommend them. The only thing stopping me from buying more is budgetary constraints, but if I had none, there's nothing else I would buy. I'm happy with my components, cabling, speakers, and room. I'd get the newest ESS Rack, Ultra 5s under my speakers, Ultra 6s on grids for each of my components, and a dozen more aperture panels.

Then I'd be *done*.
I have a mix of Stillpoints with more ultra minis than Ultra SS because they sounded better in those locations.  I haven't tried the 5s or 6s under my speakers as I have 185 lbs 5'6" speakers that could easily tip over in a quake (I'm in Los Angeles).  
OP here....

I now own two sets of Ultra SS. For my amp (Ayre VX-5 Twenty) and my DAC (Ayre QX-5 Twenty). They definitely have a very positive impact in my system, although it’s a bit tough to explain what. It’s a kind of “timbre” thing, something that makes the sound more natural, bigger impact, and more musical.

Next project, adding two sets of four under my speakers (Revel F228Be)! No money for now, but will save up for them in the next few months
I have four Ultra 6 with bases under my integrated amp and four Ultra SS under my CDP. Fliz said it perfectly, organic and musical are the best description I can give. Expensive, yes. Huge positive change.