"Good angle to field at a great height"
The low rows of the 400 level are at a great height for seeing football. You can see the entire field without turning your head much, and you're not too high, so you can actually see a decent amount of detail. They're considerably better than double-digit rows.
The only drawback are the railings. The railing in front of Row 1 wasn't an issue in the second row, but the glass and railing for the stairs blocked the entire near end zone. Sitting about 4 or 5 rows higher - or choosing non-aisle seats would have alleviated this issue.
Best for... fans on a budget