Why would you be nervous ?
You already know this game is going to get trashed.
From the same reviewers that reviewed favorably FFXIII. Think about it.
That shouldn't take any enjoyment away from you.
FFXV is a game that is rather generous but demands the player to spend a lot of time to figure things out.
Just enjoy yourself man.
FFVIII is my favorite, everybody keeps trashing it, do you think this makes the game any worse for me ? FF games are always rather polarizing !
Honestly having a lot of fun with the demo despite being extremely limited because of the fact it's a demo, and with Square's will to keep patching this to improve the gameplay and technical aspects, it's all good.
edit :
And for the record I also love David Cage's games, so yeah, reviews... Unless a game is flat out broken and terrible, I have no reason to listen to them if I know what I'm getting.
It's not going to be trashed but certainly it won't be a high 90 game.