I bought it for my Fender GTX100 to use it as a volume / wah / pitch shifter pedal. Well, it worked, but with issues:
- The pedal is somewhat loose and tends to fall forward.
- It feels like the parameter that you control with the pedal lags or doesn't change smoothly.
- When you use both the footswitch and the Exp pedal, modes on the footswitch may toggle randomly. It doesn't happen when only the footswitch is used.
- The pedal works in two modes, expression and volume. Volume mode controls Master volume on the amp and can't be reassigned to anything. This is practically useless, can't use this mode for volume swells, for example. It also doesn't affect the line output. For volume swells I assigned the volume of a simulated amp to the expression mode of the pedal. That worked, but with glitches described above.