Is it better to update the iphone ios 5.1 to 6.0.not sure

So i have a iphone 4s, ios 5.1. I was just wondering if i should update it to 6.0.im not really good with phone and all. So i'm just worried that after updating, everything in my iphone will change or something. By the way, my iphone is not jailbroken. I baught it at mobile telecommunications store [ CELCOM]. I have a postpaid package.

so the question is, does updating to 6.0 change anything in the phone. Or something.

There are a number of improvements to the iPhone with the introduction of iOS 6, however there are a few omissions.

As Apple is no longer in partnership with Google the Google Maps and YouTube apps have been removed on iOS6. Google have launched a free YouTube app and Apple have replaced maps with their own mapping software, which has received some criticism.

Your personal data including music, videos, contacts etc will port over to the new iOS without problem.

I would recommend upgrading to iOS 6 and downloading the YouTube app.