I've always had this love hate relationship with Big Muffs, I've owned most of them and this is my favorite circuit probably due to the EQ settings. I had one of the original Metal Muffs with the top boost. It was a cool pedal, I liked the sound but the footprint was too much for what the pedal could do. The Nano Series pedal gives you the same high gain fuzz with out the top end boost but with the added feature of a noise gate. I never use the gate but its a nice addition. This pedal is used but it includes the original box and papers, it is shy one back plate screw fir some reason. It has been tested and is in great working order. Please feel free to message with any questions. Open to offers. Thanks for looking.