If you don't know how could anyone know

I will rephrase my question for purposes of clarity: Does anybody who played the demo as well as the game, have opinions on the quality of the demo? Do they feel that it adequately "demo"nstrated what is notable about the game? I have strong curiosities about this.

Folks. I don't have much scratch in my wallet. When I buy entertainment games, they've got to be top shelf. If I found myself intrigued, but not wholly impressed, by the demo for "Nier Automata", will it still blow my dang mind, or do I just "not get it"?

Hello, I am new. Please don't be mean to me. I'm nine years old and my dad is the mayor, so it is illegal to be mean to me.