The Crusader from Rotosound features Rate and Depth knobs, like you'd find on just about any chorus pedal, but it also has a Level knob that mixes the chorus effect in proportion with the dry sound, and runs from no effect at all up to a 50/50 mix.
With the LED flashing rhythmically to illustrate the setting of the rate knob, the Crusader delivers a very nice warm chorus reminiscent of early Boss effects, but can take things further with a faster rate. Indeed, the last segment of travel on the knob can give you a useful approximation of a Leslie rotary speaker.
The full-on chorus that was all over many 80s recordings is not for everyone; however, with the mix knob blending in a small amount of effect, there's plenty of shading of the 'enhanced tonality' type that could work in many musical genres. With rate and depth up full, you can even add in a little ring mod flavour.