Pneupod NP-1 Pneumatic Isolation Feet - Feedback please


I came across these very unique decouplers (isolation) feet for components. The adjustable air pressure allows components of varying weights to be used without compromise. They are not inexpensive, $325 per foot. 

Please post your feedback based on your experience, thank you! 

https://pneuance.com
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@bdp24,

Thank you for your recommendation. They definitely looks more appealing and cost effective. 
I still have a bunch of the Townshend Seismic Sinks, both the original version made in the UK with adjustable feet, and the U.S.-made non-adjustable version. I liked them better than the Bright Star (which I also used to have), they being made of metal rather than the BS's MDF. Having each foot individually adjustable seems like a great idea.
The first pneumatic iso stands were Townshend’s Seismic Sink, Vibraplane, Bright Star’s air bladder stand and the sub-Hertz Nimbus (single airspring) from yours truly, all circa 1996.
This approach has been around for quite a while.  Look up Ginko Audio and you will save a good deal of money. You don't get all of the eye candy the pnuemo pods have but I bet you'll get better results. Their "Cloud" platforms are suspended on rubber balls filled with air.
The foot looks very good. Townshend Audio takes a different approach to providing isolation, using a spring inside a bellows-type semi-sealed container. You can see a video demonstrating the Seismic Pod’s effectiveness on You Tube. It sells for around $500 for a set of four.