Pros
In my job, the split is about 50 / 50 inside vs outside work so if you get stir crazy, you can always "go to the field". Again, in my job, I deal with the public, which can be good or bad, but I find it enjoyable. Hate to say it, but we're a monopoly, so pretty much, what I say goes when dealing with the customer as long as I follow the PSC approved policies...but this fact must be used sparingly and with care...but as a monopoloy, we don't have to compete for customers.
Cons
It seems, after being an employee for a number of years, that as new management teams come in, they restructure the organization into configurations that have already been used. There is also some serious back-stabbing going on forcing competent, honest people either out of jobs or out of organizations or keeping people in certain positions when they wish to advance. Progress Energy provides very little or no formal training for its engineering staff resulting in poor customer service (and thus poor image of the Company) and even worse designs. Finally, the monopoly thing goes both ways: you can't tell someone to "get out of my store" when they're a real pain...you have to deal with them.