Its great. I really like it. I like how it tightens the frequencies, made my gain pedals all more touch responsive. Although its something that only the player can feel and understand.
Most people would probably not hear or be bothered about the difference it makes, but i feel it was all worth it. The glowing reviews made me want to buy one a really long time ago, but axess shipping is too expensive.
2nd hand one popped up not too long back and i snapped it up.