Is Downloading iOS 7 worth it?

I have an iPhone 4S, still on iOS 5, because I like the built in youtube app, (NOT the one from the app store, the one that comes already installed)

I use the youtube app because the HD quality Is consistent.

What are your thoughts? Should I update?

YES ITS AMAZING. And the youtube app that you install is way better.ios5 is so f***ing old now.

  • Will my stuff lost after downloading ios 7 without UDID? I have not download it yet cause i scared something might go wrong like not be able to open my iphone 5 or i will lost all of my precious photos in the phone. Can any of you give me a confirm if you had tried this youtube tutorial and whether it work?
  • Will downloading IOS 9 delete the storage that iOS 8 took up? I have a 16gb iPhone 6, and it come with iOS 8, and I only had 11.6 gb to work with as soon as I got the phone with all of the software installed. My question is: will downloading iOS 9 delete the iOS 8 data, thus freeing up more space after the download because iOS 8 took up more storage?
  • When downloading ios 7 on iPhone will it delete apps? Ios 7 releases on 18th of September right? So when I update my apple devices will it delete photos, app, memory and stuff? I'm just asking cuz I have a very high score in subway surfers and I'm wondering if it will erase.
  • IOS 7 is downloading so slow? I'm downloading it right now on my iphone 4s and its so slow downloading, its a 16 gb iphone and right now it says "2 hours remaining" for download. Do i seriously have to wait that long? My friend said it only took 10 minutes! When did the ios 7 came out?