Some uninvited “temptation hawking” for you…
I have owned the DS Sr. DAC for several years now. It is my first stand alone DAC. My only comparison experience is with regard to universal and CD disc players I have had over the years (Technics, Yamaha, Denon). [I still have a couple of Denon DVD-2900’s in my systems used as transports.]
That said, short of my speakers, the DS Sr. has proven to be the single, most impactful (musically) piece of kit I have ever owned. To poke fun at a smoldering squabble elsewhere on these fora, I think the DS Sr. is a stone cold value (price and performance) at its MSRP.
The Jr. is reportedly a great piece of kit as well. Enjoy it. But if you can pick up a Sr. second-had somewhere, I would not hesitate.
FWIW/Cheers.