I also have a 5S. To be honest, based on the upcoming iOS 8 update I wouldn't recommend jailbreaking. I jailbroke my old iPhone 4 and it was never the same after that. It aged much faster than it should have (which I'm assuming is due to pushing the processor past what it's capable of doing). Sure, you get some nice features and free software, but as a result you are locked on the one OS as well as being in the dodgy third-party territory.
In the pre-iOS 4 days I would say yes: jailbreak and get the features you should have had in the first place.
Now? I would say no. Enjoy your 5S and iOS 8 for now and if you're still unhappy try a jaibreak I guess.