We like this monitor. It has a 60Hz referesh rate, HDMI 2.0, Display Port 1.2a+, and AMD FreeSync technology. The panel is the same as many other 28″ 4K monitors so it’s known to be adequate but not exceptional. At the $400 price point it will really help to move 4K monitor prices in the right direction.
The only thing we will complain about with this monitor, for the price, is the lack of VESA mounting. You can read more about this monitor on the AOC website.