This is the cheap way to get a big screen with a USB-C port. At 27 inches it gives you lots of space to spread out windows, and you can plug in a laptop with one cable for picture and some power. The price reflects what you're getting — it's 1080p stretched across that whole 27 inches, which means text looks a bit soft and fuzzy compared to sharper screens.
If you mostly do email, video calls, and web browsing from a few feet back, the fuzzy text won't bother you much. The 100Hz refresh makes scrolling feel smoother than a basic 60Hz office monitor, and the IPS panel shows decent colors at wide angles — useful for casual photo viewing or showing your screen to someone next to you.
The HDR label is meaningless here. Treat it like any regular bright display and you'll be fine.