Hi,
I use it mainly as a playback device for my songs/music pieces. I play (and sing) over pre-made MIDI files.
I agree that this is not the typical use of an arranger. However, my keyboard has only 2 variations and I'd get bored to death if I had to use them. Fortunately, there is the OMB which helps me play styles that are found on expensive boards but still I can't get used to playing with styles.

Regards,
George