Has anyone successfully downgraded their iOS device from iOS 7 to iOS 6.1.4?

I want to downgrade my iPhone 5 back to iOS 6.1.4 but from comments I have read, many people have been having errors. Has anyone successfully done this? I need help!

Only if your device's UDID is registered first. If not, you'll run into activation issues. I did mine at http://www.instantudid.com/, and they did it instantly for $5. Then I was able to restore to iOS 6.