>I'm currently on 5.3.2
Cool, update.
>I'm very confused on what firmware i should be on.
You shouldn't be, it's literally been discussed everywhere.
>I've read that for IOSU, i should be on 5.5.1 before it's too late.
Yes
>But, some say there are benefits for 5.3.2?
No
>I just entered the Wii U...