Here's a video showing the fuzz face effect "pedal" working with a Peavy Raptor guitar and miniature Marshall amp.
There's a definite difference between "clean" and "distorted" sounds and we're keen to say that the whole thing works well. The only thing is, after trying out our board, Jason from BuildBrighton turned up and asked us to try out his design - and his works even better!
So we've ended up with two types of effects pedal. Our latest design is more of an "overdrive" distortion effect, whereas Jason's is very much more "fuzzy" - more reminiscent of the original FuzzFace.
(check out the video jump at about 0:44 where the video was paused while we swapped out "our" pedal for Jason's)