Got a 64Gb space grey this morning. Have given my 7 month old Black 5 64Gb to my son. First thing i noticed compared to the 5 is the grey doesn't seem to show smudges on the back like it. It's smooth, fast, camera seems good. But finally Apple have a phone that you don't have to push, swipe and enter a passcode. Seeing as they won't have a notification light fingerprint scan makes it so much easier to check your phone for missed calls/messages. For a business iPhone user this makes the upgrade worth it for me anyway. The black grey looks very professional too.