Are you asking whether or not you should jailbreak? It is a lot of fun with many tweaks and themes/apps to choose from. It is very user friendly, and if you have any questions you can ask them on this forum.
The program to jailbreak is http://www.evasi0n.com/. If you updated to iOS 6.1.3 today, it is not currently jailbreakable.
What are some useful tweaks to have aside from tweaks for customization?
Useful such as BiteSMS, lorem, anyattach, or flusterless? Any other tweaks not commonly mentioned in youtube or google websites?