Added value of separate server?

I’ve gone both routes.  Mac&DAC, Bluesound.
it come down to whether you would rather use a dedicated audio component—a server, with or without a DAC— or make a computer
work.  
  There are many theoretical reasons why a computer, with all of the other electronic tasks that it is required to perform, shouldn’t sound as good as a server.
  The truth, for me, is that both solutions can sound damn good.  It’s more work to make Computer Audio succeed.  I would rather pay a little extra for a dedicated audio component that does much of the work for me.  Bluesound isn’t that expensive, is reasonably simple if not perfect, sounds great, and can be used for whole house Audio.
In my main system it plugs into my DAC and sounds like any other digital source.
  The Aurender reviews are interesting.  Compare Serenius in Stereophile to Quint in TAS.  I tend to believe Serenius.  I don’t know why any company would release a $5K component that is so buggy that even high profile magazine reviewers, who deal with this stuff all the time, have to struggle with it.  For 5 grand the thing should work at near perfect levels, not be worse than a $300 laptop

@dbphd 
Bluesound Node 2 doesn’t have a Hard Drive storage.  For storage and CD ripping the Bluesound Vault2 is required.  The Node 2 is a network player with a bypassable DAC.
  The Node 2 should be able to recognize your NAS or PC and play it.  There are many happy Audiogon users if you check the Forums.
i’ve only Used the Node in combination with the Vault so I can only speak to the abilities of the combo