Hi Muni,
when it came to racks I finally stopped changing and upgrading my support system after I installed 2 Finite Elemente Pagoda Master Reference racks in my system. There is now a version 2 but that version1 with Cerabase feet has performed flawlessly during over 20 years of ownership. I check my racks reasonably regularly whenever I’m upgrading components using a stethoscope to detect any looseness and so far its needed to be adjusted zero times. Its been tight as a nut and perfectly aligned for its entire lifetime, which included 1 reinstallation after some major international shipping. The reinstallation only required the Cerabases to be levelled to the new floor; the rest of the unit stayed perfectly adjusted.
In terms of sonic performance, it was SOTA when I bought it….now I haven’t a clue as I‘ve never used or tried anything else, but as far as I can tell it still delivers incredibly well detailed, uncoloured music in a way that provides no identifiable impurities or limitations….just beautifully pure, transparent and extremely dynamic, pacy, rhythmical sound.