This monitor is pretty damn great for $250. Is it the best monitor ever? No, and it's not gonna be good for professional color accurate use or intense gaming. Casual gaming probably. It's strengths are the price, the colors/contrast, and of course the resolution, and it's amazing for workflow and content viewing.Is HDR any good? I'm not sure. Enabling it requires changing all of my settings and I didn't see enough of a difference to bother. It is not VESA HDR certified, which means if you really want good HDR you'll have to find it somewhere else.Refresh rate and response time: this monitor has slower response time than you'd want if you want to do a lot of gaming, you'd see ghosting most likely.Color and contrast: the contrast is good, on the order of a high end TN panel from a few years ago. The color seems to be on the same order or better, but I have no good way to test this objectively.Overall, if you just want a 4k monitor and aren't too picky about anything but resolution, this will exceed your expectations.