Stillpoints - snake oil?


Anybody here using Stillpoints Ultras? My dealer thinks highly of them, but I am very suspicious.
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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.