If your question is: those of you upsampling everything to DSD (or DSD128) does it work for you...then the answer is likely VERY dependent on their DAC of choice. Many DSD-capable DACs do DSD fine but excel at PCM (and we find that a subset of this category don't really ever process DSD, they internally convert to PCM before the chip...cuz that is what they do). Some DSD-capable DACs are built for DSD and are, frankly, only ok for PCM. Without getting long winded, it's in the architecture of the chip and digital design.
What is your DAC, Erling?