I bought this Zoom FS01 Footswitch to go along with the Zoom G3X guitar effects pedal and it certainly doesn't disappoint. It works perfectly and can be assigned for many functions on the G3X.
The Zoom FS01 Footswitch is a non-latching footswitch meaning that if you're thinking of using it to change the channel of your amp, it'll simply change the channel back once your foot is removed from it's surface.
Still, if used as intended for Zoom products, indeed I'd imagine, any guitar effects unit with applicable footswitch operation, the Zoom FS01 won't let you down.