Yes!
Unfortunately (I know this is pathetic LOL!) I've had it over a week (imagine that!) and have not actually tested things. First off, I need to update its BIOS. I could not O/C at all and memory only runs at 2100. I'm using 8 pieces of 16GB DDR4-2666 Corsair Vengeance. I've read this board is picky with RAM.
But it does support ECC!
Kyle at [H] just posted a review and gave it a gold.
I'm running a 2990WX and have been since release day on a Zenith Extreme with no real issues. Even OC to 4GHz is stable. I do have a 120mm fan pointing at the board to cool the VRM section and am using top liquid cooling to keep it happy. The Zenith will only run my mem at 2400 though. With this much "load" on the mem controllers it's probably going to be difficult if not impossible to get the ram higher. Unfortunately this platform needs it as high as possible. But 32 cores helps with what we intend to do with it!
I figured I try the Gigabyte due to its brazen reviews but right now I'm not particularly impressed.
That may change as I've downloaded the BIOS and will flash tonight and see what I can break.