ok..I just got this bad-boy from MF.com today.. It really was purchased on a whim... Anyway... This thing is fairly sweet. I had to adjust teh trim pot on the inide to play with the sensetivity (open it up, and it's at the top of the circuit board on the left side) but after some tweaking, yeah.. It's nice.. It's a bit like the Bassballs, but more subtle, and less quacky. It has a Low Pass filter to switch the range between guitar and bass freq. the guitar range is cool if you want some pretty odd sounds. the bass range gets a nice, round vowel sound. It's a great little pedal, for not much cash with some great tones! oh.. and an added bonus, the external power jack? it's a BOSS barrel style, not the normal EHX mini-plug.. def. a good change!!