What are the pros and cons of jailbreaking my iPhone?

I'm planning to jailbreak my iPhone 4S, which has the latest iOS version, and just wanted to know the side effects of it.

Stability vs apps you can't normally get. Small chance of bricking it when you jailbreak. Ios doesn't support jailbreak. You can unjailbreak it if you change your mind, which works probably 95% of the time.

  • What are the pros and cons of jailbreaking an iphone 4s? I would like to jailbreak my phone for cool settings and effects. So what are te pros and cons? Also how do I jailbreak my phone?
  • What are the pros and cons of jailbreaking an iPhone 4? I'm contemplating jailbreaking my iPhone 4 (NOT the 4S). I just would like a pros and cons list. Also, what is the best program to use in order to carry out the jailbreaking? Its on version 6.0.1.
  • What are the pros and cons of a sprint and tmobile merge? Will my coverage speeds change? Will my Tmobile iPhone 5c be technically be running off of sprints network? Sprint is just downright terrible. I don't want to be paying a cent for service I can't use. Please tell me this isn't the case. TMobile uses HSPA+ network, and sprint uses CDMA. Those technologies are 2 totally different technologies, therefore probably rendering them incompatible.
  • Pros & Cons of Jailbreaking your iPhone? Ok, so I have an iPhone 4 and I would just like to know the good and bad things about jailbreaking an iPhone. If you've already jailbroken your iPhone, would you suggest it for other people or not? Have you had any major bugs harm your phone, or is it pretty safe to jailbreak? Will my phone still work the same? What are the risks? Etc. Just basically all I need to know about jailbreaking, thanks!