The Mint Green Mini Vibe in not a Univibe clone or a Leslie simulator. It's a unique modulation closer to a 3D bias tremolo with some extra movement, but none of the seasick wobble of the standard Univibe sound. It becomes one with your sound rather than completely changing it into something else.
You can also use it as a juicy harmonic enhancer with the Amplitude down. (In fact, I would like to rename it the Mint Green Modulating Vitalizer! ; ] ) I usually leave it on with the Amplitude down and then I just roll it up when I need the vibe sound. You can put a barrel knob on the Amplitude pot and do this easily with your foot. - Don (Bearfoot fx)