I purchased this expecting to put my Crybaby wah in the wardrobe but to be honest, I'm better off using the actual thing.
The plugin works if, and only if, the guitar sound is clean. If your guitar sound is overdriven then the WOW wah hardly works. I still used it to make a strange phasing sort of sound but it doesn't sound like a proper wah. I don't think this is the fault of Korneff - I think to get a proper wah sound, the wah needs to be BEFORE the guitar, not after it like we have here. Disapointed.