Risks of getting iOS 7 beta?

I'm thinking about getting the iOS 7 beta for my iPhone 4, no not 4S just 4.
But i know that there's multiple bugs, and i'm thinking is it worth getting it? Someone please answer professionally, or a good opinion i just want to know if its worth it or not.

I just attempted to get iOS 7 beta and it will not let me call anyone because its saying i have no carrier and its not activated. If you can bypass this bug then the iOS 7 beta will be okay to use. But i don't recommend it

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