Absolutely love this pedal - it has a great look, solid build and it really dones something that few others can but unfortunately it has one major flaw - it produces quite a bit of loud hiss/white noise as it modulates the low-pass filter. this was initially inaudble to me when i watched demo vids of the pedal but now that i'm aware of the sound, i can head it in the demo vids too. It is very extreme when put through an amplifier and unfortunately I thnk this may make it unusable for some users.