It seems most of WP8 users are happy with new GDR3 release but.. I think Microsoft jumped several steps ahead and left some basic OS details unchanged:
Hope they will fix it in next update/version..
- sms delivery report
- call history management
- small call button in call history (instead making call by pressing contact name)
- searching contacts by numbers/ABC
- UI design not uniform (3G on/off, WIFI toggle)
- toggle settings at home screen
- making call directly by pressing contact tile at home screen
- searchable phone content
Hope they will fix it in next update/version..