Not as accurate as advertised - 249q and 248q render significantly different
14 October 2014
Summary: I purchased this monitor and a ASUS 248q, both advertised as 100% color accurate. When I have them both connected to the same display card, using identical cables, both set to sRGB, their color rendition is significantly different. One shifts slightly magenta (the 248q) while the other (the 249q) shifts significantly green. After contacting ASUS tech support they told me that the monitors have different panels and will look different, even after the factory calibration.
Summary: -A green tinge that I couldn't remove in the blacks -Light bleeding on edges or corner -Really wanted to keep it but the display quality was not what I expected especially for the price -Slow boot up
Excerpt: It's a good professional monitor. But it has 2 big issues. 1. bad pixels. 2. very clear blue and green on the bottom corner of the screen. In other words, the Asus monitor are very low quality.
Summary: Very difficult monitor to assess. If you can find a good one (it's a lottery as ever with TV and Computer monitor panels), then the display is excellent: great colours and great consistency. However, the display flicks itself on and off if used via DVI, so make sure you use DisplayPort and/or HDMI. This is a known problem with the ASUS P249 and prior models (see the YouTube videos for "ASUS pa monitor flicker.