Ever since 1996 I have nothing but respect for Ketron products. When I worked for Chuck Levins, I sold a ton of MS series.
When I worked at GC, we sold alot of X series. When I started working NAMM shows and created X1 video manual , it was fun.
I was one of first people in the US to touch a SD1 and had a great time demonstrsating all of their keyboards at NAMM.
I will always love the product.