cons:
-some apps dont support ios 5 (seriously its very annoying)
MOST apps don't work lol...
See THIS thread...Apple is basically forcing us to update for apps....I already did to iOS 7 unfortunetly, as much as I loved iOS 5 and I will say it was definitely a huge hassle but iOS 7 itself is not as bad as I would have thought....Still bad, but not THAT bad...