Should I update my iPhone 4 to iOS 7? - 2

I don't really like iOS7, I think it's too colorful but it has new features. I don't want to update but my phone is Really slow lately. Instagram and facebook crash all the time and I get really mad with all of this crashing. Is iOS7 good? I saw some people that updated and their phone had lags and iTunes wouldn't open. I don't know if I should or should not.

Added (1). My friend told me that a long time ago she didn't update her iPad to iOS 6 and it stopped working. Do you think that's true?

Added (2). I'm also getting a new iPhone 5.So should I keep my 4 with the iOS 6 and update the iPhone 5 to iOS 7?

No my friends did and they regret it big time

No, I doubt IOS 7 would make it faster. Reset your Ipod/Iphone and re-download app, that should make it faster.

YES… It has a lot of security fixes and advantages.UPDATE As soon as possible

  • Update stopped during ios update own iphone now phones broke I connected my iPhone 4 to my computer (iTunes) and started doing the update through iTunes. About five minutes into the update iTunes in my computer stops working, causing the update to of course stop working. Now my phone will not turn on. On the screen it is black with the 'charge symbol' as if it were low on battery and an iTunes symbol. I have tried turning my phone off and on, but of course it didn't respond.
  • Should i update to ios 8 or stick with ios 7 on my iphone 5? Cuz from experience i know ios 7 is really slow on iphone 4. So just wondering if anyone already updated to ios 8 on their 5. Is it worth it, any issues with the speed
  • Should I update to iOS 7? Or Stay with iOS 6? I have an iPhone 5, and I was wondering whether iOS 7 is a worthy upgrade from iOS 6, and if the features are really that compelling or not. Or Should I stay with iOS 6?
  • Should I update my iPhone 4 to iOS 6 or leave it on iOS 5? I'm currently using iOS 5.1.1 because I didn't want to lose google maps (which I use a lot) to shoddy apple maps but I've seen a google maps app on the app store now so do you think I should update to iOS 6? And what are the benefits?