Day 2 listening impression is that these headphones are chameleons. If you throw on 10 different sounding albums, they will sound like 10 different headphones. Warm, bright, open, intimate, whatever is in the track I'm playing is how it comes out. No coloration, no emphasis to any region. Details are plentiful, speed is impressive, and you can really get some great insight into any mix.
My only complaint wearing them for much of the day...damn these are heavier than I had thought they'd be. I'm used to lighter planar magnetics and these are kind of weighing me down a bit. I have modded the headband with Dekoni nuggets to add support to the right areas for my head. It's taken care of the hotspot I was getting, but the feel of the weight is always kind of there around my head. Maybe I will experiment more with headband padding to get it even better distributed across my head because I feel like these will be worth the effort.
EDIT: latest contraption that has fixed the weight distribution about 90% for me. I am almost at a point where I can forget I'm wearing them. There is hope.
