DAC w Tube itch: Audio Mirror

My guess is you might have a difficult time getting responses to your exact question.  A question back to you... why only Audio Mirror and not Lampizator or Aries Cerat.  BTW, I considered the Rockna Wavelength prior to settling on Lampizator Pacific.  I too wanted an all-tube system.  

or. the killer Aesthetix or Brinkmann or Lampizator…..

i had an audio mirror tubador 3se for some time, quite liked it, but i am not qualified to comment on the comparison asked by the op

otoh, @verdantaudio knows the rockna's sound, but not sure he has had an audio mirror unit

The Wavelight is an awesome DAC but a resistor ladder simply is not a substitute for a tube output stage.  I have learned this lesson a variety of ways.  Tubes simply add something that nothing else can replicate.  
 

I have never heard an audio mirror DAC.  I hear good things about that brand.  
 

for as many DACs as I have spent time with, I have very limited exposure to units with tube output stages.  I have heard Lampizator and the guys from Vu Jade brought over an awesome unit.  This changes in January.  I have a new Tube DAC from Canor on order.  Can’t wait to spend time with a unit like this with four 6922s in the output stage.