Really impressive. But I have one word for you ASUS... PLX!!! On a board this high-end, this expensive, and with tons of connectivity PLX is a must. M.2s 99% of the time won't use all 8 lanes that you give them, but 2080 Ti might get choked with 8 lanes. Let PLX juggle the bandwidth as it is needed.
It would be a dream if Intel would up the PCI-E lane count on 20, or 24 for top of the line mainstream CPUs.
Apart from lack of PLX this board is a dream.