i need to take up the least amount of space as possible at most gigs. attaching to a pedalboard just won't work for me, as that usually adds way too much space needed.
place FX8/AX8 on floor
plug in power cable
place Expression Pedal on floor, plug in cable
plug in guitar cable to Input
plug in cable to output
that's pretty much it and doesn't take much time at all. i don't have other pedals to integrate though, so the FX8 makes sense to put on a board with your other pedals of choice, but perhaps the AX8 could live well on its own, assuming you do most, if not all, in the unit itself.