Lush Chorus that is a spacious effect without overly emphasized swirl. Very unique. 4 Presets buttons is all you have with increasing levels of the effect per switch, but it's all you need. Beautiful sound and a classic for a reason. Is the Pedal version of the Dimension D that you hear on many classics albums. Want a clear example of this effect? Listen to Steve Steven's clean guitar tone on the Billy Idol Flesh For Fantasy from Rebel Yell. One of my all time favorites. Worth every penny!