Question [Q] Worst case scenario of rooting GS4 GT-i9500

Sorry if i'm posting this in the wrong section or if it's a repost
I wanted to ask that what's the worst that can happen after rooting GS4 GT-i9500
i mean that after rooting this what will happen ?
As Triangleaway doesn't work on this model so what's the disadvantage ?
will there be any permanent problems in it's general usage after rooting ?