what is the risk of using odin ? (Samsung Galaxy s3 neo GT-I9301I) - root topic

Hi guys, i was thinking of rooting my phone with odin but i'm afraid i might brick it
so.. is there any one who used odin and it worked with him without bricking his phone ?
because when i use the normal way to download supersu and install it i get
-----
"There is no binary installed, and SuperSU cannot install it. This is a problem!"
"if you just upgraded to android 4.3, you need manually re-root consult the relevant forums for you device!"