I'm a long time supporter of Apple, but you really "screwed the pooch" with IOS7. I'm not mad about the user interface, it needed to be done, and took a little while to get used to, but my compliant is the battery.
I've watched battery usage on the iPhone 5 literally die (from fully charged at 100% to 3%) with very limited use. I've plugged in Apple and Non-Apple cables and both have stated they are not designed to charge the phone - and refused to do so. Even using Apple certified equipment the phone refused to charge in a wall wort plug overnight. That pissed me off.
I've done factory resets of the software, etc - nothing helped.
So I've reverted to iOS 6.1.4 and will live with that until the contract with Verizon is up. I may, just may consider jumping ship to Android. They've finally got their act together, and I'm concerned Apple has lost their way. This update showed it.
I know you've got some upset customers over the battery and cable issue - you probably should address that quickly!