I have a Korg Midi pedals mod. MPK 130....it works like a charm....to bad, Korg descontinue it long time ago.
I ONLY use it at the house, to me, is NOT practical to have 2 more things to carry and connect.
It is best to use if I want to make a song with more complex chord estructures...with the pedal board you can make more complex chords, providing that you also have the chord mode adecuate. I use IFinguered....so, is like playing in my Electone/Hammond days, but with the benefit of the arrangers of today.
I can use it with either my T2 or PA800.