Pros
Decent pay for the type of work. Fast paced work meant that, despite the repetitive nature of the job, it didn't get too boring. Driver was a great guy.
Cons
The job can be quite tiring. This is not just due to running around with packages, but in fact mainly because the seat for Driver Helpers to sit in is unbelievably uncomfortable. It is just a flat pad a against a wall with a thin flat fold out seat. It is incredibly stressful on your lower back because there is no support, your legs have to be in an awkward position because it is right over the steps, and you have to try to stay upright while the truck bounces and jerks around. I know it sounds like it would be a small issue but trust me, the majority of the physical pains associated with the job were due to the seat and it was without a doubt the worst part of the job for me. That said, I did get used to it after a couple weeks, and I wouldn't suggest avoiding the job just because of that, but it's something to be aware of.