Hi - trying to research before purchase, but cannot find decent samples of the WK's acoustic guitar patch(es) - not real sure of the acoustic piano either...in all of the samples I've heard it sounds harsh (?).
Anyway - can anyone advise/help ?
Thanks in advance!

I don't know of any samples anywhere, but I have the WK3200 and the acoustic guitar sound is passable at best. On the bright side, the acoustic piano is quite good for a lower cost board.