I am a guitarist who wanted some background beat and a little accompanyment. I got that and much more. I am teaching myself how to play keys and this unit makes it easy. It has been written that this unit is semi-pro and the G1000 is a pro unit. The sounds from this thing are as incredible as anything I've heard.
Sounds are easy to change even on the fly.
I've hooked it up to my GR 30 and am able to play my guitar with the keyboard sounds and visa versa. I've gotten some incredible sounds. 10 Sounds are realistic. Over 400 styles. Haven't done much with the effects myself but the effects in the styles are very good.