Iphone 4S should I upgrade to Ios7?

I'm thinking to upgrade my Iphone 4s 32gb to Ios7

But I'm afraid it will run slow or bad after the upgradef
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Should I do the upgrade?

IOS 7 is so much better than the iOS 6 because everything is so clear and looks so much better. They also have added on extra features such as a torch, which on iOS 6 or lower you would have to download an app from the App Store. They have put on a ton of different ring tones, text tones and background pictures. I highly recommend you get IOS 7 and it won't make your phone slow. I had it on a iPhone 4S with only 18gb of memory.

I've an iPhone 4S and I did upgrade it to ios 7
Ios 7is a lot cleaner, elegant and stylish to use, it's cool, and the flat look gives it a touch of elegance
The camera features (filters) are a treat to use
A lot new features have been added
It makes your phone feel new
BUT, the animations, trust me, are dam too slow! Everything is super slow (animations and transitions) they'll test your patience, literally. The 4S doesn't hang, it never lags.
I recommend you to upgrade to ios 7 and Jailbreak it! I did it and trust me, my iPhone 4S is now blazing fast, with coo new tweaks made for ios 7
Try it and I bet yiu won't be disappointed