This boutique box has reached near legendary status due to its amazing fuzz/octave combination. It's a fickle pedal to get your sound dialed into but the sonic rewards are well worth the effort. You have three effects, fuzz, octave, and swell and the later two can only be activated if the fuzz is actually on. First thing we noticed were the wide parameters and diversity of sounds we could crank out of this thing. The fuzz is thick, chewy, and very dynamic. Subtle guitar volume changes cleaned the fuzz up nicely while pegging the volume blasted out lots of ferociousness. The Octave up is one of the best out there. Tracking is flawless and very responsive around most of the fretboard. The swell mode takes some getting used to on your picking end but yields some very neat stringy textures if nailed properly It's a great effect that sounds otherwordly with a sweet fuzz/ocatve combination dialed in. Add to all sound some rock solid contruction and quality components, and you have one cool pedal