I posted my initial impressions here:
I’ve been using it with my Audeze LCD-5 for a couple of weeks now and that is an excellent pairing. I’m using low gain, push-pull, no feedback, but haven’t really experimented with the other settings on the LCD-5.
One addendum to my original post, the push-pull does measure 1db louder than single ended (with the LCD-5). So comparing the various settings is difficult since they all affect the output level.
I’m considering selling all of my other solid state amps (not that I have a lot of them).