Hi, Frans, I have not received it yet, probably Friday. I am reading the manual and watching the video tutorial for PA800.

1. Since many had problem with joystick, I was thinking that may be the sustain pedal which looks much more durable, can does the same thing. Is it so?

2. I already have guitar amp and processor, but may be connecting those to PA500 cause some damages to electronic boards. Is it possible?

Since there is a 15 days return policy, with full refund, I am still checking other keyboards, specially synthetizerts. Searching through videos on Youtube, I still think PA500 has better (at least deeper) sound than Yamaha S710/910, and Korg M50.

3. Since I have no background in keyboards, it is strange for me that I can not find demos with equal guitar sound quality on M50. Other than having more styles, can I say arrangers like PA500, also have better predefined sounds, compared to synthetizers? or all sounds on PA500 SHOULD be available on M50 with same quality?

Thanks again.