In person it’s very noticable. If you play games in the dark a lot it can be “night and day” difference going from LCD to OLED imo.
The best description I can give it is the colors are just so much more punchy and strong as well as the light bleed being completely gone. 90 Hz is just icing on the cake when navigating menus.
Not sure what that guy above is using but I’ve had AAWireless for over a year and it’s flawless.