Pros
The schedule is flexible and the employees get along well with each other. McDonald's offers free employee meal when you work a shift of 4 hours or more. It also offers health insurance, and offers 25% discount at the restaurant your work at.
Cons
The pay is poor (little over minimum wage). Also, the amount of hours you are scheduled per week is not guaranteed (you can be scheduled for 35 hours in one week, but just 25 hours the following week). You're also working hard on your feet the entire shift because the work is fast-paced and high-pressure. And customers get angry if you don't serve them quickly. Lastly, the turnover rate of the employees is high, so you're constantly dealing with new workers who are in training, and therefore lacking full productivity; hence, you have to pick up their slack.