Claims to improve circulation for warm up and recovery
Claims to improve range of motion in stretching
Honestly, at first glance I thought this was an overpriced metal hunk of quackery. But then I did a quick search through Google Scholar for Whole Body Vibration and Vibration Plate Therapy and it seems that there is enough plausibility for vibration therapy to warrant actual scientists testing it out for a variety of benefits.
There are a number scientific papers investigating whole body vibration therapy on flexibility, mineral bone density, delayed onset of muscle soreness, oxygen uptake during exercise, etc. One meta-study on randomized control trials showed that whole body vibration had a positive effect on lumbar spine bone mineral density on post-menopausal under 65-years-old.
I think whole body vibration is intriguing but, as always, you need to do your own research to see if there is enough evidence that it will be beneficial for your own situation. Dave Asprey's vibration plate is extremely expensive at $1500 USD. Less fancy whole body vibration machines can be found on Amazon for a tenth of the price. Just make sure you know what you are getting as vibrations above a certain threshold frequency are known to cause physiological damage.
The customer reviews for this product on the Bulletproof shop website are worrying despite the 4.5/5 stars. One user claimed they were positive it "revved up my mitochondria" and others were using it to improve their lymphatic systems, all of which were not mentioned as health benefits in the machine's marketing material. Always be skeptical!