This is a clone of the "Wampler Triple Wreck" pedal made by Brian Wampler. As an Triple Rectifier Emulator it's endorsed with immense distortion as well as lower range (over)drive. The EQ sweep is very effective and dynamic, especially the bass, which goes from tickling to gutwrenching.
That unholy boost is not a boost in a classical way, because once engaged it’s turning that beast into a fuzz dripping Sludge-Monster. Imagine a stampede of woolly mammoths running all over you. This thing was made to crush people but in a gentle way. Probably one of the tightest, thickest highest gain distortions you've ever heard.