Hi, I'm Jailbreaking my iPad for the first time, and I have some questions regarding it : 1) Is the system/software unstable after jailbreaking? Do the apps crash or the display mess up while using it? 2) Are there certain apps that don't work well with it and crash/brick the iPad? 3) Do I need to connect the iPad to a computer when it shuts down? 4) How often does the iPad crash after jailbreaking?