I am in the same boat as the OP. For me it is either a new Bluesound Node 130 or a used Lumin D2. From everything I have read and absorbed it is really hard to out do the Node at $600, and you can always add a higher quality DAC and better power supply later. I also think that the BlueOS is about as easy to use and intuitive as anything else out there. I believe the Lumin would be a better sound, but it i hard wired only and the interface is less user friendly.
getting into streaming
So after many years of playing cd's, I'm considering getting into streaming music. I would prefer to use the DAC in my accuphase CD player; my question is I assume any streamer would require something additional to control it (smart phone, tablet etc) but I'm wondering if there is something out there that has its own controller to use to surf for songs, so I don't have to buy anything else to use it