Its really a grand stadium for entertainment, not football. Several problems.
1. Way too open, the noise does not reverberate down onto the field, as a result, very little crowd noise is created.
2. The King Kong size video board is a great idea in theory, but horrible in reality. Why? Because you literally cant help but look at a video board that is that big right infront of you. As a result, it feels like you are in a cinema watching a movie on a big screen. And what does everybody do at the movies? Keep quiet. Same affect, you tend to not watch the field, but watch the screen instead and you tend to keep quiet. This flips back to number one, no crowd noise.
3. Way too much other stuff to distract you. Its been a couple of years since I have been to a game in person, but last time I was there you could see cage dancers on pedestals, some guys in a band playing, and even a freaking Victoria Secret outlet so your girl can pick up some thong panties at halftime, LOL. Seriously, just ridiculous stuff to have at a football game.
As a result, what is our record there since it opened? Probably not more than .500 if I am just guessing. That probably ranks in the bottom half of the NFL when it comes to home field advantage. Like I said, its great for entertainment, not great for football.