Amen, Fran.
But I've basically given up. This thread alone explains just how few people have the slightest clue as to it's incredible power. I agree, there are considerable advantages to the Roland CS (it just remembers the chords, you can STILL change VAR, fill and even styles while it runs), but the looper also has some cool advantages...
You can consider that, with THREE loops, you can run three different sections of the song and switch between them. You can overdub additional stuff to the loop (can't do that on the CS), and you can add real audio to the loop.
Exciting stuff...
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An arranger is just a tool. What matters is what you build with it..!