Hi, Sandy. I am an MS-60 player, with a Midjay, who recently purchased a G-70 (still in the box).
My decision, after playing Solton/Ketron for years, had to do with the age of the SD-1+ design, the new distributor, and what I believe is a questionable practice of direct sales...going around distribution, in a few instances, which is an absolute "no-no" in the retail world. Also, I have heard of reports of difficulty in securing timely tech support.
Just don't feel comfortable with the set-up. Others here, particularly some in the music business, have expressed the same concerns privately.
Love the equipment; just don't feel comfortable with the situation as a whole, particularly from such a small foreign manufacturer. I recently spent $5,000 plus on other brands due to these concerns. Otherwise, would really have preferred Ketron, and will re-visit the situation when the Audyia is available.
Just my opinion...
Russ