I've had the pa500 a bit over a year. Owned a pa50 and an i2 before it.

What I like the most:

*EDS sound engine (same as in Korg M3, M50, Pa800 and Pa2X)
*Touchscreen
*Songbook

Duane
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Korg PA4x76, Yamaha CP-70 Electric Grand Piano, Zoom L20 mixer/recorder, Turbosound ip500 column speaker system, Zoom B1 FOUR Bass Multi-Effects Processor