I don't see how anyone could think this unit is great straight out of the box.
I noted the things the DS did "better" when I first turned it on, but I wasn't ready to throw out the parts to my PWD Mk.II. Believe me it took as long as I indicated before I felt like the nasty bits were gone. During burn in of any component I use the "short sessions with long waits in between" approach so I don't fool myself by just getting used to how something sounds. I also use something else (in this case my TT) as a known standard against which to judge any changes.
One other thing. The DS is (IME) very sensitive to the matching ICs. I discovered the ones which worked perfectly with my PWD were not a good match with the DS. You may need to be prepared to experiment.