I've used the Mapleshade Records method of improving CDs for many years (some of you are probably familiar with these). I always found the discs treated to sound superior in everyway. And I figured that there wasn't much additional improvement that could be obtained. But decided to give the Essence of Music a try with a well what the heck, doesn't hurt much to try kind of feeling. But I wasn't expecting much. Wow was I wrong! First disc I treated was a Brian Blade album. I am intimately familiar with this album and have listened to it countless times through the years. Holy moly the improvement with Essense of Music was nothing short of shocking! It was as if I've taken that extra step to the real music/microphone feeds. There is a beautiful improvement in resolution, soundstage, PRAT. Just sounds more musical, and live. But I just honestly thought there was nothing else on the disc to hear but I was flat wrong!
Now the only bad news -- I need to treat hundreds of CDs and re-rip them :-)