Wait until you are on a bandstand with a full band, and the leader calls a tune you don't have a Performance already set for...!
It's an awesome ARRANGER... but from extensive time on it, I think I can say that it isn't the fastest keyboard to set up on the fly.
I disagree - there are 3 right hand sounds and 1 left hand sound always available in each setting. There are EZ on/off buttons right at your fingertips. There are TONS of performance patches, same as on workstations, and the beauty of the 3x enhances the adaptability "on the fly" with all the real time sliders. I could play this (and I DO) in large bands (at school) and never turn on an auto drum or pattern. It can run with all the big dogs side by side in sounds and effects. I've had most major brands, and this is one of the most versatile boards even if it wasn't an arranger/DJ dream. Give it another try.