Should I download iOS 8.1 on my iPhone 5S?

I've read a few reviews, and some of them say that their phone is slower now that they've downloaded iOS 8.1. Has anyone else experienced this? Apart from speed, what are the other positive and negative points of downloading it? I'm probably going to wait a couple of weeks anyway, so there's time for people to find all the bugs, but I just wanted an idea of what it's like.

If you have enough space and you don't care go for it

You have iPhone 5S? Update now! Hihihi.

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