Love to hear from current owners or past users of Isoacoustics Gaia footers.

Do you still like them? Have you replaced them with something you felt sounded better in your system? I am considering purchasing a set of the IIIs, but am not sure I want to spend $400 on these footers.  
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I have GAIA I's on my speakers and I'm very happy with them.
Which footers did you replace? Your provided spikes? Thanks. 
I was thinking about getting the Gaia II, but the cost is 600.00 plus I would need the spike cups at an extra 140.00.  It also looks like the spike cups aren’t long enough to use on my thick wall to wall carpeting.  Last thing I want are my 115 pound speakers sitting on top of the carpet.  
I replaced the stock footers. I have Stillpoints under the rest of my components. The GAIA's improved bass articulation and allows the speakers to disappear better. It's not a night and day difference. You have to hear them in your own system to determine if they're worth it to you. In my system I submit the GAIA's are a much better value than Stillpoints when I consider packaging and positive impact on sound.
I went from Mapleshade Brass Heavyfeet to the Gaia I's and heard a definite improvement. I added Sound o city outriggers threaded for the Gaia I's and that didn't improve the sound much but made the speakers more stable. The Gaia's are quite expensive but well worth it to me for the sound improvement they made in my system. 
I have them on some large floor standers, but I was kinda throwing the kitchen sink at "Last System.."  I don't have anything bad to say about them, but I've noticed some of the A/B tests seem to leave the non-Gaia speaker slightly lower than the speaker with the Gaia feet and suspect a slightly higher speaker will sound different to a seated listener.  Also, if you have a bass port near the floor, then you'll get a different (less bloom?) bass.if the port is off the floor.

They claim to restrict side-to-side cabinet movement but allow front to back movement.  If so, I could see the front to back movement creating a cleaner, less thumpy sound, but not necessarily objectively better.

They do look nice compared to spikes, and I have no intent to sound snarky.  They're still in place, and I love my system, which says something.
Herbie’s Audio Lab products have 60 day trial.
I gave no experience with either but these are cheaper and worth a try?

Several options.

They have 60 day’s return policy,

I am totally happy with Gaia ii under my Lansche 4.1 speakers.

No need to compare with other foot.

Of course, it is not easy to change the foot under 130lb speaker.

Just go for it, if you are not happy you can return.

But I bet you that can not take it out.
I have the Gaia2 on Martin Logan CLX Art. They were very difficult to fit as thread wasn’t long enough. However now they are on , just - I’m pleased with improved sound. Previously used spikes sitting on granite bases.

Improvements were subtle but included less glare, improved bass control. 

Surprised that they don’t induce speaker wobble - which would be a problem with the height of CLX’s. 

They are expensive though, I’d only fit to speakers if you have high cost large floorstanders. The CLX’s are £25k, so worth the bit extra for Gaia. I haven’t bought them for my much cheaper surround floorstanders for example.

There are cheaper ways such as inner tubes with concrete slabs, etc but the Gaia is unobtrusive and takes up no extra space. There are also more expensive and larger solutions, such as Townsend Podiums. 

For smaller speakers I use Focalpods, eg. On my ProAc Response 2’s and my surround speakers ML Scenario.

I’d say they make more difference than fancy cables, but much less than a component change.

In summary, if you are using high end speakers, and you have already fixed room acoustics with treatments, then give them a try. 
Just love the GIAII I bought last year . I have used them on six different speakers and they are a necesitty now . Only problem is having to take them off and put them back on each speaker that comes through my bi monthly rotation . Could use a few more pairs ! The biggest improvement so far has been on King sound -King and KS17 electrostatic speakers . Also nice improvement on Klipsch RF7 as well. What I get is a more focused imaging and tighter bass response . 
I have had the Gaia II footers with carpet spikes under my Goldenear Triton One speakers for about 4 months. I have tried four different spike/cone/footers with these speakers as described below.

I originally had the speakers installed in a room with carpet over a concrete slab using the factory supplied spikes. I had good results with Audio Point brass cones under previous speakers (Wilson W/P 7, Dunlavy SC-V, Mirage M-1), so I tried the Audio Point 2.0's on the Triton Ones. Unfortunately, this did not work well at all. Dynamics were restricted, transients were softened and the sound became dull and lifeless. I actually preferred the sound of the speakers sitting flat on the carpet with no spikes or cones at all compared to the Audio Points.

Next, without expecting much, I tried the Track Audio stainless steel spikes ($119 from Music Direct). These resulted in a nice improvement over the stock spikes with tighter bass, better defined images and a more dynamic presentation. I was pleasantly surprised by how much of a performance increase the stainless steel spikes made.

I then moved to a new house with a second floor music room over the garage that had carpet over plywood flooring. I tried both the stock spikes and the Track Audio stainless steel spikes to see how each worked in the new room. I was disappointed to find that while the Track Audio spikes were still better than stock, it wasn't to near the degree of improvement they had been on the concrete slab. 

I used the Track Audio spikes for about 2 years before installing the Gaia II footers with their matching carpet spikes. The Gaia's made the largest improvement of any of the previous solutions. Bass became even more defined and articulate, images are more three dimensional, stage depth improved and the speakers disappear into the sound stage to a greater degree. The overall sound is more relaxed and enjoyable while revealing more subtle details.

This experience has demonstrated to me how different floors can have an impact on which speaker supports will work best. It would have been interesting to see how the Gaia's would have performed against the Track Audio spikes on the concrete slab, but for my current environment, I am very pleased with their performance.

Just purchasing my first tube amp a Raven Blackhawk ,but they sent a Nighthawk until the Blackhawk Mk iii are ready and using Definitive Techogoly BP 8080st speakers .
I have a 27'x14' x 8' ceiling with hardwood floor and lots of big sofas and tables and noticed the floor vibrating and until I read this subject on this forum, I would have done nothing .. But I have these big rubber 24"X24" for garage floor panels ..And went out and cut 2 for each speaker..The floor does not vibrate and I do hear little more detail coming out of speakers.. So just trying to give you a cheap way to isolate speakers from floors and see if it makes a difference in your speakers.. As soon as the Blackhawk arrives will give it a chance with my DT 8080 speakers but really thinking of going with Focal Aria 948 and seeing sound difference over the bi polar speakers ..But really wanted to share a cheap way to isolate speakers ..