Love the PS-6. It covers a lot of ground on my board. I use the Detune for chorus sounds, the pitch shifter and the S-bend options on it. The only function I don't use is the Harmony. It has become a vital pedal on my band board.
One thing I love doing on the S-bend setting is to set the rise really short, but the fall very long. Strum a chord, then lightly tap on the pedal. The rise/fall is kinda creepy, and sounds awesome with reverb.