I am using this for de-hissing of tracks and it is very impressive indeed - once you get the hang of the controls it's actually very simple, but also very effective.
This is a truly amazing filter plugin, if you have a midi expression pedal and you play guitar too, you'll love it! You might need a cc range limiter like "midiCurve", and these two plugin working together pretty damn good.Klanglabs and vstfree.com thank you guys.