i'll answer since i had direct experience between the two
Yulong DA8 DAC only is far superior to the Concero HD, the soundstage of the DA8 is amazingly wide, i'd play tracks where I thought instruments were coming from behind me 5 meters away, then i'd play the same track with the Concero HD and i'd hear the same instruments playing in my left ear only, both were connected to my V200.
I kept the Concero HD in the end because the USB implementation is better for my needs.
Thank you belisk for the help.
What about overall transparency, detail, and clarity?