It's a fuzz. It does one thing, and, depending on your preferences, it does it quite well. It sounds more like a Boss fuzz than a Fuzz Face or a Big Muff. It's quite big for a "compact" pedal, but it's built to survive a nuclear war. Extra plus for the silent footswitch. If you are unsure of what type of fuzz you want, this one is cheap enough to take a chance on.