You will need a new chicken-head for the saturator knob. It's a click click click control, not a smoove dial. It certainly works, but it will give you a big self-esteem boost to pop a new knob on there. Enough about my knob! Let's talk about the sweet, sweet fuzz that can turn to a roaring big fuzzy boy, all the way to an old man (or woman) sputtering in frustration. Like any good fuzz pedal it should go from 0 to 100 before you nod off. Plug this thing in and start living again!