Pros
Most of my co-workers were great, we'd get to see each other every hour at the transit center. It was a 5-10 minute break every hour. Driving around the city you like all day is pretty fun, too. Especially when you find out where the best places to eat, walk or people-watch are. You become familiar with the pulse of the city, and learn to enjoy most of the crazy stuff that happens everyday, from accidents to crazy people. Driving the bus is also great because you are flying solo, no bosses hovering over you. Its not back-breaking labor and it's heated in the winter, air-conditioned in the summer.
Cons
Management changed every two to three years. None of the managers at our location ever really had a connection with, or understood, the operators and their duties. I understand the General Managers not knowing road ops. However, the Road Supervisors should know the drivers and routes. Only four of the six RS in my ten years bothered to learn the shifts and routes. Three of them had no commercial license. Learning the employees' shifts is important to avoid giving drivers verbal or written warnings for incidents that occurred when they were not on the clock. To be honest this only happened four times in my stint there, but that is four too many, and I remember each one. All four of those drivers were at home or had not even worked the day alleged incidents took place. That was very hard for many of us (drivers) to understand.