while i used it, three years ago, i was very happy with it. the sounds and styles are just as good as pa80, meaning very good. the build quality is not great, but the keybed i believe is better than yamaha's. but not a great deal.
the screen is ok, i had no problems for the 16 moths i kept it. but is just old generation.

buttons were rubber, a strange type of. if you pressed and move the finger, you feel it comes off. just like the rubber you use to erase a pencil mark.

the problems i had were: strange noise on outputs, quite audible and anoying when recording something; one buttons of the four OTS would remain down, if pressed too hard; two or three unexpected power offs while playing - couldn't risk that in a public performance.

right now i am considering buying either a pa50 or a roland gw8e. probably the roland will take my money, as is a 2008 keyboard, not 2004, better build quality and smaller size.

goodluck.