first of all, I love it.
I'll try to give a description of what this thing is: it's a tape maching that follows you everywhere, and you have some control of how it follows you. It can track you, repeating everthing you play, or it can record what you play (overdubbing or not) and play it back. The play back can be adjusted: you can set direction and speed, stretching and compressing (without affecting pitch), and change pitch. Add a little controlable randomness if you want with a dedicated control. Now, where it gets really interesting, is by using the footswitch or the expression pedal. With the first you have 4 different modes available (and use it to store presets, or to control the pedal footswitches if you want to spare them from stomping - don't forget this is a type of loop pedal, so there will be a lot of stomping), and with the expression pedal you can control any of the parameters and combine them if you wish.
The thing is: you have to know what you will use it for, and there is no obvious use to it. Otherwise, it wil create a mess, or an unusable effect. It is a wonderful pedal, opens up your creativity, but you'll have to be open for it.