If you're like me and fuck up your devices every few months and need the warranty to get it fixed for free, don't do it. :S
In the end, it's not going to matter how many breaths you took, but how many moments took your breath away.
-Shing Xiong
Depends what you install on it from cydia, if you have the 4/4s like me, it will lag if you install hella tweaks and stuff. But mainly is better to jailbreak