There really isn't a place to post about this case yet, so I thought I would drop some temperature testing here. I am, by all means, a complete novice at testing cases:
Worth emphasizing again that this is without any case fans. I didn't have any extra 120 on hand to populate the rear exhaust. Thus, these tests are mostly looking at the natural airflow pattern in the case. Sort of like a stock GHOST S1 (no tophats)
What I found surprising is that the single fan Noctua NH-L12 runs warmer than the 5600x stock cooler with a shroud. With just a single fan on the NH-L12, the intake is too far away from the side panel to draw cold air in and so hot air is pulled in from within the case.
It also look like this case definitely needs active cooling to keep enthusiast hardware under control. Without exhaust fans, air from the GPU floods the case and increases CPU temperatures. Just removing the top panel to give the GPU exhaust an exit can lower CPU temps 7C. With that said, even without fans nothing was thermal throttling for my build. Fans will likely only help this.
I mentioned this to Louqe, but I really think this case should have launched with options to purchase whatever accessories they are still planning for the top (AIO support, fan enclosure, etc...). I think the potential of this case won't be fully achieved until these accessories are available.