Pros: perception of job security, some semblance of job training if you self study
Cons: management, poor benefit, regulatory issues, union, company performance, long hours
My position was at one of their nuclear facilities, everything we did was such an uphill climb. Management has been selected to be ultra conservative based on years 'experience'. In this case experience translated to old management practices and reluctance to upgrade even the most basic equipment to 2013 standards.
I would never recommend this environment for a young professional, it will probably be detrimental to your career.
The regulatory environment surrounding nuclear power is so overwhelming (internally and externally) and management provided no buffer, this made it difficult to focus on the real issues. I remember arriving at work one morning when an auditor was waiting to grill me. This audit had been scheduled for months and not a single manager or supervisor informed me of it.
The pay was below average, the Union environment meant a major disparities in earnings. The company had implemented pay cuts, wage freezes, and cut benefits (401k, pension, medical, dental) during my five years with the company. Seriously, 2% match on a 401k, mandatory (unpaid) overtime, no bonus, etc is an insult.
The company faces major headwinds due to its inability to recognize the changing energy market. Google it and see the plant closures and low demand in the PJM footprint.
In retrospect the only upside of this job was perception of job security at a nuclear facility but that has been challenged by multiple plant closures (again, google it). I guess some of my co-workers made it tolerable but as a whole the personnel were tough to work with and culture was not positive.