Review on ASUS VG259QM 24.5" 1920X1080 DisplayPort HDR Gaming Monitor, 280Hz, Flicker-Free, Pivot, Tilt, Height Adjustments by Jeff Singh

If you press Alt+Tab, the refresh rate changes from 280 to 144 or 85. It's really annoying when you're streaming or switching windows. My first came completely broken, my replacement was fine until about two days ago. I will go back and look for an alternative. I'm upset because I endorsed Asus and it left me with a bad taste in their quality control. EDIT: To fix the Alt+Tab issue, run games in borderless fullscreen. Rating changed from 2 to 4 stars. The monitor is excellent in terms of image and refresh rate. Recommended if you don't mind playing in borderless windowed mode.