Do's.
โ Bypass License Verification
โ Modifying SQlite Database or changing the value of the app.
โ Can be overclock , underclock , higher/lower the voltage on a gpu.
โ Theming status bar or notification header.
โ Can remove a system app or bloatware application.
Dont's.
ร You can not install a latest system update.
ร An incompatible tweak may cause an bootloop or stucked on logo.
ร You can't run an app with root verification , even you using a rootcloak for that.
ร Force close some system apps may cause on your previous removal of a system app.
ร An incompatible custom kernel , may lead to hard brick.
ร Battery drops really fast.
Yan lamang po ng pagka-alam ko.
EDIT : Yung sa don't number 3. Sa mga napakatigas na root verification na hindi kaya ibypass ng root hide. Katulad ng http injector.