@goose I had the same question. No one seemed to have had a shoot out between the U2 and the N200.
I ended up getting the N200. Lumin gives you roon endpoint capability. Its native app is just not good. Despite being a Roon user I wanted to try the Aurender. So far no regrets but I do miss Roon with its information rich UI and ability to pull artwork for the local music files.
Edit - @lalitk is right about the cables. I have tried two power cords so far on the N200 and it reacts well.