IKEA Rating - 10
Everything worked exactly as stated in the instructions.
Tony Stark Rating - 2
The tutorial assumes that you understand how to wire a breadboard and that you know that Python is a type of coding language.
Mr. Wizard Rating - 10
It turns out you don't even need to leave terminal. There's an interactive interpreter already installed you just need to give it root level access.
Then you just need to import the GPIO module, setup pin 25 to be an output and start turning the LED on and off.
I recommend this one if you are new to Python and GPIO's.