I had my Dunlop DVP3 broken and as I was a little upset that it not lasted longer than 2 years mainly in rehearsal room, I went for a budget Behringer FC600. Both pedals work well with the Kemper.
I use a Behringer FC600 and just because I had a Bespeco, I use this for "Volume". Both don't use the complete pedal travel! The Bespeco in this case is really bad, uses about 15% to 20% of the whole pedal travel and I use it only to spare the tuning switch to switch off the sound. The Behringer use about 50% -60% of pedal travel, what is acceptable for me, but I wouldn’t call this working well. I've callibrated several times, but no improvement.