Update:
After spending more time with this thing I'm quite impressed by how intuitive it is and how inspiring it can be. It probably won't be an always on type of thing but certainly is an incredibly unique effect that can work for just about any style of musician. The Pitch Grinder is a challenge, a challenge to be creative and push the boundaries of what you're currently doing. I challenge you to take the plunge and pledge to their Kickstarter, I promise you won't regret it. I did a couple recordings on my computer as well using a USB mixer and a Shure SM57. Here's a medley of Pitch Grinder sounds and an improvised noise track I did with it as well.