I own two Aurender, a N100 and W20SE…after replacing my Aurlic Aries 2. I have not heard the Lumin, but extensive research did not lead me there. I have also heard the N10, an outstanding sounding unit worthy of the price.
I can say the Conductor app is excellent as is support… available directly through the app. At audio shows their flagship is the most used streamer. Streamers is all they do and they are phenomenal at designing and building them..