Programming it isn't that hard if you're used to wee clicky MIDI button things. I haven't quite got my head around the PC Editor app that they give away for it, but it does seem to work. My main gripe is that the programs are not organised into banks of 10, just one long list from 1-99. With my present floor controller (8-way Rolls MP80) this makes life difficult.
That all said, how much practical use 100-amps-in-a-box are on stage is another question, I've a strong suspicion I'll settle on 1-3 variations & leave it at that.
Tonally it's hard to judge at the moment until I can wind it right up - should know more in a month or so.
Pete.