Pros
SRP is a very old, very stable company that offers comprehensive benefits and ready access to any number of career development opportunities. This is the kind of company where career employees with 30-40 years of experience are not the exception, they are the norm - that speaks volumes about the company itself.
Cons
Certainly, as with any company, you might get a less-than-inspiring supervisor or manager. But the great thing about SRP is that movement within the company, even between the Power and Water sides of the company is not only not frowned upon, it's considered a healthy thing. So it is the rare employee who feels locked into their particular job. If you wish to move around, you will have that opportunity. That said, many who don't suffer a dolt for a boss wind up spending decades in the same role, satisfied. The work/life balance is good.