This is my first day (and night) listening to my system and speakers via the Isoacoustics Gaia IIIs. My speakers are extremely modest compared to the rest of my system since I've always been a "great speakers can't fix what's messed up in a previous component or interface" kinda person.
The Gaias took over from Herbie's screw-in glider feet (which are otherwise excellent, btw) on a very well constructed wooden floor.
I've been going through all my reference cuts (and yes, many are more sound-quality oriented than performance-quality oriented--I don't have the energy to list them here), especially those with challenging bass, spatial or other system challenges.
My results mirror those of the various magazine reviews you can find of the Gaias (e.g., Stereophile, Audiostream, HiFi+ and Audiopig), tighter, more extended bass, a larger and more clearly delineated sound stage, lowered noise floor, improved instrumental texture and better articulated edges (attack) of percussive instruments. I would venture to say that the Isoacoustic Gaia III's sonic impact is more along the lines of a component change rather than what might be characterized merely as a "tweak" and, believe me, this particular audiophool is fond of his tweaks!