I had somewhat of a hard time with this pedal. I struggled with the wiring, but got it hooked up...and then the circuit had some problems. (I fried the first IC because I don't think I biased the circuit correctly). Anyway, long story short, here's a quick demo / me hacking around:
https://www.youtube.com/watch?v=GkfhhmD5PZ0
Sounds cool!