Taddeo Digital Antidote

Anybody use this before ?? DOES IT WORK ?? How good it is ??
I have the passive $100 version. It makes cheaper digital (mine: Sony Dvp-S7000) sound very good, makes music more natural and listenable. Very subtle but important differencces.
I would go with the $100 version and if you don't like it, try the more expensive one.
Very subtle improvements on my modified Anthem CD1 player. Not night and day, but still an increase in sound quality, soundstaging, and the highs are more natural. Best for mid level systems. Over kill for entry level systems, not good enough for high level systems. If you are fighting a brightness problem, the Taddeo can help