The Fuzzrocious Demon King was the final piece I needed for my bass pedalboard. I purchased a Hand painted over kid painted version of this pedal directly from Fuzzrocious. Though the pedals takes a bit to be made, (every pedal is handmade and handpainted) it is well worth the wait. The first switch on the pedal (furthest right) is like a Fulltone OCD but retains low end unlike the original OCD pedals. Whats great is that Ryan at Fuzzrocious is a bassist and builds these pedals with bass players in mind. The second channel (middle button) is a gate/more gain button that basically turns this pedal into a ripping fuzz that cuts through the mix. What I found interesting with this pedal is that the gate really clamps your signal, which is perfect for short, staccato'd stops if thats your thing. They final switch is a feedback loop which can either be latching or momentary. I choose the latching option so that my foot does not need to be glued to the pedal in order for the feedback to be engaged. This feedback is also tunable which you can tweak to your liking. The only thing I noticed is that the feedback loop does not work with my JHS Colour box engaged in front of the Demon King in the chain. However, when I turn the colour box off, the feedback loop works fine.