Pluspunten
You'll be charmed to work in football media for a while. You'll get to work with some genuinely good and talented people. If you're lucky, you'll get to travel to some events. Your only expectation here should be that "The NFL" looks good on a resume for your next job.
Minpunten
In short, leadership does not care about you. You will just be a number on a spreadsheet for the disconnected executives who make decisions at the company. The company has a massive over-reliance on part-time/contract/freelance employees enchanted by the NFL brand, most of whom they never plan to actually reward. Leadership rarely makes decisions with the interests and wellbeing of their employees in mind (despite what they tell people). Most company decisions only make sense through two lenses: short-sighted financial outlook and PR. The culture is cancerous with many employees feeling overworked (teammates quit or fired), undervalued (limited hours / rate), powerless (leadership pays no mind to their individual concerns) and at a dead end (no opportunity for advancement).