I use this pedal for a few months.
This is the only model that I used but I have consulted many forums, test benches and instruction manuals before choosing one.
What made me choose special is its ability to send different messages depending on whether you press or release a button and especially the possibility to send SysEx (System Exclusive) and not just the standard controls.
I also appreciate its multiple programming modes: patches of 9 programs (one per button) or sequence (following program, the previous program), toggle buttons or temporary ...
What I would have liked is that it includes an expression pedal and accepts more than one, but the assignment of the external pedal can be completely controlled from the messages sent by the pedal it is not too inconvenient.
For equipment that is no longer manufactured for some time, it seems strange that there is nothing so powerful to this day.