As with a lot of 144hz refresh rate monitors the screen will dim significantly to compensate, but it is toggleable

Windows does a lousy job scaling, so if you have a super hi-rez screen, a lot of apps and UI elements have tiny text, and can be straining on people with older eyes, like me.

A lot of customization easy installcons: doesn't support Gsync suffer from bleeding

make sure that the game you play supports 21:9 aspect ratio otherwise you’ll be wasting a lot of screen space with black bars