The Like Jones Pedals Gritcake is an overdrive in the style of the a certain pancake-named circuit, known for it's mild-to-wild gain structure. The v2 brings with it True Bypass switching, a cleaner power layout (still uses a 9v center negative Boss-style adapter only), and the incredibly useful clean blend.
Please see the linked video for a few samples of various gain structures. Note the positioning of the Volume/Tone/Grit knobs up top, and the smaller clean blend knob below.