Pros
Rewarding work. Internal hires are highly prioritized so potential to quickly move up as turnover rate is pretty high; also a con because you end up with inadequate people in positions they shouldn't be in. A decent amount of overtime available but it also becomes mandatory if noone wants to work it so be careful with that. Opportunity to learn a ton of grounds related skills but don't expect proficient training or any dedicated training for that matter.
Cons
Toxic environment where bullies are enabled, HR is no existent, and same goes for the union. Turnover rate is out of control and employees are simply thought of as bodies. No effort to build retention rates from an incrediblely disorganized management team which contradicts themselves, shares their lack of knowledge of important job related principles, gets caught up in petty office dramas, tries to place employees in positions, bairly manages their team, and in general gets caught up in the 'why do we bother with middle management and what do they even do?' You'll be frustrated to mediocrity where hard work isn't rewarded and avoiding work is its own reward. An antiquated employee of the month system keeps things interesting as employees are ironically nominated based upon who works the least or who management hates the most. The pay isn't great for most areas as it fell behind property values drastically. The benifits are pretty mediocre too, 75% isn't great when the local government jobs provide 100%.