I have the SD-1000. The sounds are mostly excellent.
BUT, how do you select them if ...lets say you connect it to a T5?? To my knowledge no way to do it. A Korg PA will let you set MIDI bank/Program as user voice settings....I wish Yamaha provided that. (I am looking to get a S-970 and it would be great to be able to use the SD-1000 with it).