I've been messing around with the SD1000 for a very short time. Aside from obvious benefits of any sound module, this thing is really small...almost the size of the palm of your hand! For program change, it does accept MSB LSB messages either through a DAW or a master keyboard. I'd say it's a pretty useful device for a musician/composer on the go, or if you're on a modest computer and just want to do quick sketches... or if you want to layer additional sounds....etc.

For the sound quality, I thought it'd be best to just play and demo the unit in my own way. All sounds in this video are from the SD1000.