Hi,
a year ago my church bought a Kemper :-)... so I just come with my guitar and my Foot-Controler and a USB-Stick, if i tuned something at my own Profiler at home.
I did a few profiles of my Jackson Ampworks Newcastle 18 (Search for NC18 on RE) and used them a little bit. But I found better Profiles (AC30s, the AC20, some of Michael Wagener for heavier stuff)
Most of the time i use my own Profiles from my former Boogie Mark IV. (also on RE).
I use the app onsong on my iPad for leadsheets, which can send Midi commands with every Leadsheet. For every song it sets my Footcontroller to the Tempo, Amp and FX for the beginning of the song. The Footcontroller sets the Profiler..
I built my own Footcontroller, because i wanted to have the flexibility to change amps (rigs) without changing the fx... and change the fx without switching amps. And it accepts the midi-commands from the iPad
Martin