Lots of time to study, interpersonal problems between coworkers, lots of accountability, can be stressful.
Pros: days are routine, it's a good job to find out if you want to drive for a living.
Cons: coworkers (including management) don't always get along, you rarely get to go outside or on a truck, it can get boring in the vault.
Sent valuables out with crews, high accountability for each item, a lot of down time in the middle of the day, good place to do homework/study, handled rare emergencies, received valuables at the end of the day, balanced all paperwork. Prevent internal theft (I prevented an internal theft of $20K). You are very visible when in public because of the truck, uniform, and sidearm. Having to settle/switch crews around because of interpersonal problems.