Some highlight translation:
QMK 3x, ACOG 3.5x
Length 2/3 of ACOG
Crayon eaters need click to inch printed on scope
QMK turrent easier to damage
ACOG is for M27
ACOG more clarity in shadows but QMK brighter
QMK bigger FoV
QMK more distortion at edge
QMK more "parallax distortion"
Two eyes open: ACOG more black rim focus on aiming eye. QMK less rim focus both eye
If ACOG have killflash QMK is clearer
TLDR: QMK better FoV and awareness while ACOG less tiresome on the eye after using for some time.
He have also tested the old scope: