Job security. You won't get fired unless you really mess up or steal big stuffs
Pros: excellent benefits, job security
Cons: 24/7 on call.
I am in maintenance. The work/life balance in maintenance is poor. You get stuck in the evenings, get called at night to help fix things.
Since the union employees do the actual physical work, you won't learn much unless you go out of your way to learn by urown.
Actual workers never get blamed, it's always the supervisors.