I received my Essence and found the music was improved over the control disc, but there wasn't a profound change. Like a veil was lifted, but a thin veil. The descriptions above are more accurate than my attempt to relay the improvements. Notes are fuller and depth increases. The music seemed to flow easier, sounded more like the performer was in the room.
I then took the control disc and treated it with Auric Illuminator and found the Essence disc came out on top again. I lost my control disc, but it seemed the control and the Auric treated were rather similar. I've had the Auric for some time, but quit using it after a while, only using it to help with discs that would "skip". I guess this is why I quit using it, not much change.
I believe I'll keep using the Essence, but only on the discs I listen to more than others since it is a time consuming process. But so is cleaning vinyl....