Hi !
I just transfered a minimalist 4-track rock session using the profile I made with my digitech RP500 ( now collecting dust 
The profile is the brownsound , that I did particulary like on the digitech ( based on Van Halen's amps maybe ) It's very dark.
I must confess some profiles sound 10x much better than mine but this way I 'll still have the feeling of having my digitech available while it's sold.
A great feature I used on the digitech and I hope to use on the KPA was dialing the expression pedal to the amp gain ( like some mesa boogie ).
See ya