OK, bucking the trend here, my first impression on a 4S ( downloaded directly on phone-1hour)...YUCK. Where do I begin? First , the flat, candy icons look amateurish, or they were designed by Fisher Price. In all honesty, Apple has created the world's first chick OS...it reminds me of a cosmetics counter. My manager ( a 45yo woman) agreed and said the icons looked "cute". Sigh...
The trend within their apps ( and in Mac OS X as well) to go greyscale or minimal design , in my eyes, reduces functionality and ease of use. At 50 years of age, I find greyscale icons/toolbars difficult to use and to discern which is greyed out or not.
I also abhor the Search function popping up EVERY time I pull down the icons on the home screen too far. Wish there was a preference for that.
Auto updating of apps, nice...but would rather have the ability to IGNORE an update on specific apps. The newest version isn't always the best...IOS 7 is a case in point.
Overall too much emphasis on eye candy and less on function.
Back to IOS 6 when I get home!