That Boss Slicer is pretty amazing! Seems to be aimed at a different thing though... More hi-techno? And it's not so handy to use.
The Minor Concussion is all about making your band sound like the most exciting thing ever. I'd fully expect a whole load of drummers to buy it, and dish it out to their guitarists to use... It makes the bass drum sound like the End Of The World!
I'd think sound engineers would freak!
But hey, what would I know - I'm just a spring-loaded guitar god, myself.