I just started to mess around with DSD and downloaded a couple digitized albums from RuTracker. Kill 'Em All and …Nothing Like The Sun. I have heard may versions of both but they have never sounded better. I was really surprised, it was very noticeable.
I like dsd because many were released with multichannel mixes.
Beyond that, ignoring the care that was put into mastering dsd releases, the format just eats gobs of space and doesnt really sound much better than formats like CDDA to me.