reverseapachemaster found a spec sheet for what Belgosuc makes that Dark Candi imports. I believe the product was D2, and IIRC it contained about 45% maltose. I don't know how much maltose beets naturally contain, but I don't think it's that much. So there's some sort of processing going on with it, or added ingredients.
As far as how it's different, I'd need a lot more info to start to answer that. The best way would be to buy some and taste it. Maybe it's better than what people have been using.
To paraphrase Dr. England - "Off-flavors smooth with time. So do mountains. Brew it right from the start!"
My blogsite: http://nateobrew.blogspot.com/