Couldn't have said it better myself. I'm not one to say measurements are useless but you have to know what you are measuring and how it actually correlates to what you are hearing. I avoided tube amps for the longest time since I don't consider myself a "lover of distortion". However, now owning my Eddie Current Super 7, I have yet to own or hear at a meet a more realistic sounding amp. Though there are plenty of contenders I have yet to hear. And this is with the K712. I can only imagine once I get to hear the HD800 again with it, which it's said to have excellent synergy with. I think the K812 would do well with it also. Of course I'm sure the bass is a touch plump with my current tubes compared to my old Soloist but the sense of ambience, micro dynamics, textures and timbres are all dramatically better.
My only guess is that maybe well designed tube amps may have some advantage in the time domain or phase. Not sure though. I just highly doubt an 02 is going to even take the k712 to this level of realism. Though I haven't heard one to be fair.
I haven't heard the Super 7, but I have heard the Balancing Act with a variety of headphones and I thought it sounded incredibly realistic on the headphones I listened to on it.
I have to agree, a good tube amp just has a sense of realism that I haven't heard in solid state amps. An excellent tube amp takes realism to the next step.