I got to play around with the Scott Ian pedal a few days ago. Back in the 90's I was a bit of an Anthrax fan and having seen the last setting on the video below (at 3:05), I was intrigued by the Pitch Shifted Delay. It's a fun little feature.
The pedal's functions are straight forward. For the first six settings there's Volume & EQ. That's it. The gain is preset and the sound you get, forces you to play chugging riffs. There seems to be a noise gate built in, which makes it perfect for palm muted riffs. Not so good for surf or country.
Is sort of puts me in mind of the Peavey 5150 combo that I had back in the olden days, gain through the roof and a really gut stomping low end. If you like playing heavy guitar, this one is a potential bargain.
Remember kids, this one is more for riffs than it is for solos.
Enjoy the video!