Got the headset in today. Man, they weren't kidding when they said its pretty big. On the other side, I feel its quite comfortable. However, ordered a headband sleeve from Amazon which should be arriving shortly.
For ear cups... might go for after market if i like the headphones themselves. Seem a tad too large, but not uncomfortably so. Clamping force is very light and the cans are in general quite light.
I havent tested the sound too much so far, need to mess around with it and EQ for a while, but so far seems quite nice. Not sure if it's $500 nice but bass is certainly much better vs my HD6xx.
Edit: I do like them, need to EQ some of the mids a bit I feel, but very cool headset. Loud as hell on my lowish end Schiit stack and I thought I couldn't drive it. 50% vol on Schiit, 70% on PC and 70% on YouTube music and its super loud.
Also, interestingly enough, Dolby Atmos on Music/Balanced or Detailed setting sounds really good even without EQ adjustments. I think it sounds better vs vanilla no spacial sound. DTS though is very meh with music at least and these headphones.
Edit 2: Playing some AC/DC, Metallica, and other classic Rock and it all sounds really good, better vs HD6xx and I love those headphones. Gaming next.