Your experience depends on your location, crew, management, etc.
Pros
The food is great, I ate so much while working here that I gained weight. Their limited/seasonal chicken is especially the best on their menu (I believe right now it's their Honey Chicken). Employees get discounts on their food, which is the main reason why I ate there so much. You have the potential to bond with your coworkers over shared struggles. You can wear blue denim jeans as part of your uniform.
Cons
If your store has bad management (or your manager just hates you), or your work environment is toxic/hostile, you will have a horrible time at your place of work. Working grill is the most stressful out of all of the crew positions. Depending on how high-volume your store is, expect busy, sometimes stressful shifts. Benefits are mediocre. There isn't much room for advancement.