Two floors of combined chorus (or not!), Each with a speed setting, a deep and level. Nothing is easier!
Note, however, the output is curiously mono only. Damage.
This means that the configuration is childish: the speed of the effect, its depth and its level is adjusted for each floor or for a single choice since there is no requirement to accumulate. However, this would miss a lot of opportunities to use a floor on both. My advice for a good sound basis, then adjust according to your taste: all knobs at noon the first level (its ample but not intrusive) and added the second level with all the knobs between 9 and 10 to win intensity and depth. I love it!
Basically it's like having two pedals in one identical chorus. Suffice to say we can go a very tenuous indeed something extremely marked!
Used for over a year without worry, I have only one regret: that Rocktron has not added a switch to enable or disable the 2nd chorus level. I put only 8/10 because of this.
Today she left my pedalboard overloaded but only for lack of space and because I no longer use. Otherwise she would have remained still a good time!