i have a yamaha psr 1100 (like oriental) and i am thinking to change it with one korg pa 50...is it a good desission or not. i had never work on korg but i had hear them and i like their sound

I have owned the PA50, it is well built, sounds good and not a bad keybed from a low cost model. I found the OS easy to use but others have found difficulty. Learn it and you will be rewarded.
The Korg PA50 is one of the better low cost models.

thanks for your reply!! and i think this is a good choice!!!