Is this kiosk menu safe or is there a better and safer way to use the kiosk menu?

[Toadbros2000]

So I am looking for a way to boot the kiosk menu on a retail Wii U, and found this. All I wanna know is if theres something better, or if this is safe to use.
I apparently can't send links, so just search for the Wii U kiosk menu on the internet archive site

 

[Norris]

It's safe just don't do anything retarded