MICHAEL WENYON  Just another report of good customer service from MichaelG at SRS Labs: I needed help with an upgrade and he emailed me the solution straight back.

As noted elsewhere, to use this with an Airport Express, I had to use Airfoil to capture the output from iTunes. After that, sounds great!  
(Version 3.1)

DOUG MATTHEWS  I've got ver. 3.1.0 running on my iMac with iTunes 9.0.2 on Snow Leopard 10.6.1 with no problems; sounds great and it's a big improvement on my 2.1 speaker setup.

for all those who complain about SRS customer service, all I can say is I had great service and quick response when I emailed Michael (MichaelG at srslabs.com); I don't know them personally but SRS delivered what they promised and I have no problem recommending them to anyone.  
(Version 3.1)

CSCHOOLLAND  The technology is oustanding. Even the presets for different speaker types (internal, external, headphone) are fabulous (though my iMac seems to fall somewhere in-between). This is a great investment for anyone wanting to automatically improve the quality of your digital audio and get the most out of your high kbps, without paying hundreds of dollars or more for a state-of-the-art sound system (or, in addition to, why not?).

As for customer service, some have complained about the activation limitations with no customer support. After using iWow for years, I began experiencing activation issues today (I boot externally between two machines), contacted CS, and got a helpful reply TEN MINUTES LATER. They've got my support!  
(Version 3.1)

NIPOLATUSIDEROMANOJI  SRS iWOWMAC 3.1 is disabled by the installer of Snow Leopard 10.6.2 as being incompatible. I hope, this time, there will be a free update to the next version. 3.1 dates back to June 25, 2009. Obviously, an update is needed. Was it this plug-in that was responsible for iTunes to freeze now and then when downloading podcasts? Maybe yes, maybe no.  
(Version 3.1)

YESUAINI99  I've bought iWOW twice, both with the bundles, but every time something upgrades in Mac like iTunes, Snow Leopard, whatever, the iWow stops working and requires a upgrade purchase. Imaging if Microsoft Office is charged in a similar fashion to users, it would cost thousands of dollars. Therefore, my conclusion is that this app's average cost of ownership is more expensive than that of Microsoft Office and majority of other software because it requires endless upgrade purchases. The company takes every opportunity to draw your blood whenever a Mac OS update, iTunes update, version update, even security updates. It is so ridiculous. I would suggest everyone gather to boycott this company and make sure they have some kind of free upgrade policy clearly defined. I am not saying there should not be upgrade charges, but I am asking for a reasonable, fair, legitimate upgrade charge when warranted.  
(Version 3.1)

O5220803  Sadly, IWOW does not work with iTunes 9 ,or Snow Leopard. Surprisingly, Volume Logic 1.7 is GREAT with IT9 and SL!  
(Version 3.1)

BALTHAZAR B  I'm pretty impressed with how iWow makes music richer and warmer, but I have a few large misgivings about the support behind the product. I downloaded the free two week trial of iWow to test it out. When you open iTunes an iWow window pops up asking for you to register it or you can click a Demo or Cancel button. The problem is that neither the Demo nor the Cancel button works. I have to force quit iTunes and then reopen iTunes and when the iWow window pops up it does actually work. I have to do this every time which is just ridiculous. I wrote to iWow's support right away about this and two weeks later I have had no response. The other day they posted a coupon code for iWow to their blog and I was willing to overlook this issue and buy it. The site asks you to login at checkout and I logged in with the login I had created when downloading the trial, however it didn't work. I even had it email me the password twice to be sure and tried to re-register with my email, but it said the address was already registered. It was at this point that I gave up. I really wanted to give them my money, but this is absolutely ridiculous.  
(Version 3.1)

BALTHAZAR B  I'm pretty impressed with how iWow makes music richer and warmer, but I have a few large misgivings about the support behind the product. I downloaded the free two week trial of iWow to test it out. When you open iTunes an iWow window pops up asking for you to register it or you can click a Demo or Cancel button. The problem is that neither the Demo nor the Cancel button works. I have to force quit iTunes and then reopen iTunes and when the iWow window pops up it does actually work. I have to do this every time which is just ridiculous. I wrote to iWow's support right away about this and two weeks later I have had no response. The other day they posted a coupon code for iWow to their blog and I was willing to overlook this issue and buy it. The site asks you to login at checkout and I logged in with the login I had created when downloading the trial, however it didn't work. I even had it email me the password twice to be sure and tried to re-register with my email, but it said the address was already registered. It was at this point that I gave up. I really wanted to give them my money, but this is absolutely ridiculous.  
(Version 3.1)

DTRUETT1  As per my comments below, I tried to contact the developer twice through their links just to be able to download v.3 with no success. Then I tried to Email them with the Email address below and no answer. Today I get a promo for half off version 3.

I’ve moved on to Hear. I haven’t seen support (lack of) and non-response to customers this bad since Chronos had been for a couple of years.

“FLORIDAPHILLIP I sent an e-mail to the developer (csonline@srslabs.com) and in less than 24 hours got a link to a new version that works with OS 10.6. iTunes works fine now. Good service. Good product.“   
(Version 3.1)

MC_SHIZZEL  Can't even demo the software on my Mac Pro running iTunes 9 on Snow Leopard. After launching iTunes it just pops up with the registration box, the only working buttons are Check for Update, Buy Now, and (presumably) Register. Clicking on Demo or Cancel seems to do nothing and leaves me stuck on the window, go figure.

Although I was able to demo it on my old Mac running iTunes 9 on Tiger and the plug-in works pretty well.  
(Version 3.1)