Actually setting the setting, and then navigating to it was difficult, it was also difficult to tell when the pedal was on/off if I recall on stage. I screwed things up more often than not- I'd go to hit the big low C# opening notes in the song, and something was right. Sure enough, my note were just plain old standard low E and out of tune with the song, because the pedal wasn't on/ or not on the right preset.