I still cant decide whether I like it or not. I think it's easier on the eyes and I get less eye strain, but I always have a preference for a bluer toned screen. Being from a Graphic Design background we were always made aware of the importance of screen calibration. It's odd that there would be a feature which dynamically changes it depending on your surroundings. But being a phone I guess the intent is to make the whites more paper white in the majority of situations. Sometimes I find it too yellow/warm at times like it's got it wrong. At other times it seems perfect.