It's not good or bad, it's user preference. If you want to have more control, customization and functionality with your device, then jailbreak. If not, then don't.
As said before it is really user preference. If you don't want anymore customization that what apple offers, then don't. If you want to be able to tweak and play then do. It is more fun to jailbreak though, if you are coming from an android device your probably going to want to jailbreak.
Using a jailbreak to get paid apps for free is illegal and nothing less than theft. iPhone Forums in no way supports any methods used to obtain paid content for free. Our advice is obtain apps legally.
Also, this thread is almost three years old and the original participants have not been back. With that, this thread is now closed to future replies.