Why is it so hard to setup Google Cloud Print?

Does anyone know how to simplify it? Like its on the network and everything, so how come cloud print is having trouble picking it up?

https://www.google.ca/?gfe_rd=ctrl&ei=rIwTU7iYJaeD8QfAwoHACQ&gws_rd=cr#q=get+google+cloud+print+to+see+my+printer