Jailbreak and iOS 7 recommendations?

Hey guys.
I'm currently running iOS 5.1.1 on my iPhone 4S. I saw iOS 7 and it looks Really great. If I simply just upgrade to iOS 7, will my iPhone have any problems? And should I un-jailbreak before upgrading? Thank you x

You can either plug your phone to a computer and restore with itunes or just do an upgrade. If i were you i would do a clean restore. This will cause you to loose your jailbreak and jail break apps.