What does this remark mean?
It means buy a colorimeter and call it good. You don't need a freakin Eizo. Waste of money. I can get .2 DeltaE consistently on Dell U series with ColorEyes Pro and a good puck. The colors shift just as much or as little as an Eizo or LaCie etc. Those are welled binned PVA and IPS panels that come with a Color calibration pack from some other manufacturer that you can buy separately, and cheaper.