With this pedal, you will be able to have two independent loops that will switch back and forth with just one stomp switch. Press it once you get loop A, press it again, you get loop B. It is also triggered by a remote switch so you can have the pedals and the switcher in your rack or far away wire remotely trigger it via a standard mono cable.
There are many practical uses for this pedal, for example, in loop A you can have an overdrive and in loop B you can have a chorus effect. So lets say you are playing a nice clean sound with chorus, then it comes the lead part, all you have to do is press the switch once and the pedal will take out your clean/chorus sound and switch to your overdrive lead tone, once you are done with the solo, press it again and you are back to your clean/chorus sound, that easy!