Alright so straight to the point.
riba2233 is spot on in his design and assessment of the cases thermals. It's hugely impacted by the top exhaust and the rear GPU ventilation area is very little if any bottleneck. I'm using a Noctua 200mm as exhaust set to 850RPM.
-12900 = 2-3C warmer than test bench
-RTX 3080 Ti TUF @ 330w (silent bios) :
64C/1350RPM on test bench
66C/1450RPM with top panel off
73C/1590RPM with top panel on
As you can see there is a massive difference with and without the top panel. This applies to every component except CPU really, my DDR5, NVME, PCH, etc. As soon as you remove the top, temps immediately plummet within 45 seconds. Removing the rear panel has a negligible effect of like 1C/75RPM on GPU thermals.
The case literally sounds like a wind tunnel with the 200mm fan going full bore. For me 850RPM is way too loud. So 60-65% is my threshold (600-650RPM or so) but temps go up. The case is extremely sensitive to the speed and restriction of the top fan.
Now as I mentioned there were some real issues with install. Here is the complete build on the removable tray:
The first problem was that my motherboard did not fit at all:
IO shield was impeding the motherboard standoffs from lining up.
I removed the IO shield (hate doing this as it's ghetto in 2022) but it still wouldn't fit. Turns out the brace on one side of the motherboard tray has rivets that protrude and one of them was making contact with the backplate of my motherboard. I ended up going out and buying a rotary tool to file the rivet down only to discover the motherboard still didn't fit. This time I had to actually trim the IO shield which really upset me because it's a expensive board and MSI will not let you purchase a replacement and I like to keep my stuff like new for resale.
I also tested the Asus Z690i and that board will never fit as the VRM protrudes beyond the motherboard PCB slightly.
Next problem was that I could not install the CPU 8 pin cable because of that dreaded brace. Good thing I bought that rotary tool because I used it to mutilate my custom cable just for this case:
Overall the case is great and there really is nothing else like it. I knew going in I'd likely be a beta tester but just hoped not to this extent.
It has passed my test of handling a 150w+ CPU and 300w+ GPU no problem.