Pros
Excellent health insurance (lots of coverage and easy to meet deductible) that covers all the family, including adult children until they're 26. If you last for at least 5 years, you'll get a small pension when you retire, even if you're young and have 40 years or more before you retire. You just got to know how to apply for it at retirement. There's also 401K plans. Early morning hours, out by 9 am usually, so you can have another job. They recently bumped the pay up to compete with Amazon, who just built a new facility across the street. You get OT after 5 hours daily and the sixth day is always OT. The drivers really appreciate when you ask them about how better to load their trucks according to their routes. It's great when they have a lot of package handlers to help when we get slammed, so we're not overwhelmed. You get 2 weeks of paid leave after a year and three weeks after 2 years. The schedule is flexible enough that management will give extra time off with enough notice. If you plan to stay more than a year, make sure you read the union contract and ask the union steward any questions or call your local union for information. Don't hesitate to do this because that's what they're getting paid to do. Just be professional about it.
Cons
The harder you work, the more work you get. Management is always pressured to get more done in less time and with less labor. It's a union job, so right now most of us get the same pay (union contract dictates the pay) and there are some who do as little as possible. That means if you are killing it, then you will also be doing the work others should be able to do. Supervisors are not part of the union and should not be doing union work. They're not even suppose to touch packages, except in training new hires or when short staffed. They're supposed to make every effort to be staffed with union members. One time, union reps came to our facility, and the supervisors wouldn't dare even touch a box in fear that the union reps would see them. They are not part of the "bargaining unit". Everything is dictated in the contract that the union negotiates with the company. If you say anything to them about this, they will target you because you can get compensated for the work they did and took from you. I believe it's 3x the amount that you would have been paid. You do this by timing them when they do union work. It becomes stressful when you do grieve. They'll eventually leave you alone the more you grieve them because it stresses them also. Don't tell them and don't just make a threat to grieve, just do it. It's just easier that way.