Skude,
I bought two Ketron SD7 keyboards and had no problem with either of them. They were as dependable as any other keyboard I have owned. Right now I am using a Ketron SD40 module which is exactly like the SD7 and it too has been reliable. I sold both of my SD7s only because I often play two gigs a day at different sites and got tired of the heavy keyboards. Like you, I too am not comfortable with brand new products from any company and prefer those that have already had the OS updates needed to make them a real pro instrument.

Deane