Diki,
I have explained it on here before....
I do think the new so called chord sequencer (looper) is nice as it provides a quick way to just do the chords. Then when you play..on top of the chord sequence you add your own fills, breaks, RH ect using BOTH hands. I think it is more of an important feature than some folks might realise.
Playes that have used a chord sequncer will understand it's value.