Marshall Nack has posted a review of the Finite Elemente Cerabase footers ($640-$820/set of three) at Positive Feedback. His conclusions:
“The Cera footers exhibit the high-quality manufacturing Germany is known for. They are constructed from precision-machined stainless steel and employ extremely hard, high-tech ceramic balls for fast transfer of sound-interfering resonance away from the component. They are available in sets of three or four and are height adjustable.”
You can read the full review here.