Bought the EVGA NU Audio on the day it was released and all I have to say is I love it.  Before I was using an external DAC/AMP (Schiit Fulla) and I felt like it wasn't driving my headphones enough (Beyerdynamic 880 250ohm), I felt like I was not using my headphone at its fullest.  I was on the market to get a new DAC then I heard about the NU at CES and decided to go with it.  Now my headphone sounds more crips and has adequate bass that I didn't even know my 880 have.  Also, I can clearly hear the details of the instruments.  On top of that, I don't have the extra cord connecting to my computer getting in the way.  The only issue I have is I wish the software came with preset equalizer, but I am pretty sure that's coming with the software update (hopefully).  I definitely recommend it to someone who needs to upgrade their soundcard or their DAC, having a clean look having all your hardware in one place (computer), and most importantly, sound quality.
 
My rig setup
- Asus z270
- i7 6700k
- 240gb SSD
- 1 TB Harddrive 
- 850 Watts Power Supply
- 32gb Ram
- EVGA 1080
- EVGA AIO
- EVGA NU