Audio Prism s CD Black light disc mat

Anybody have any experience or feedback they want to share on this green glow in the dark plastic/magnetic mat thingy that Audio Prisms makes?...called the CD Black Light I believe? I seemed to remember that this thing was supposed to work better than anything for a digital tweek. It was even recommended components material in Stereophile a while back...then got ditched from "the Guide" Anyone have any thoughts or oppinions?