Chorus is an effect that is used to create feeling of several instruments, playing in unison, when there's only one and generally to increase richness of the sound.
WetDryMix: A delayed/original sound rate controls the presence of flanger in the sound. Because flanger is an interaction between those two, maximum flanger is achieved when WetDryMix is set to 50%.
Depth: Controls the maximum pitch and is expressed in % of Delay.
Frequency: This is period of the Wave Shape repetition.
WaveShape: Sets the delay variation envelope. 0 is square and 1 sine.
Phase: This determines posistion of left and right chorus on the LFO = low frequency oscillator = WaveShape. Phases 0 and 4 set the channel difference to period/2, phases 1 and 3 to period/4 and finally phase 2 to zero.
Feedback: Picks the chorus output and sends it back to the input, which results into a metallic effect, easily audible at higher feedback settings. Lower values add dark and higher bright resonance.
Delay: Fundamental delay of the "wet" sound.
Frequency: 0.80 hz
Phase: even phases
Sounds good anywhere used (almost.)
Frequency: 2.5 hz - can go lower
Feedback: 0 to -30/+30
Frequency: 2.5 hz
Standard synth chorus
Frequency: 2.00 hz