Pros
Starting salary/wage. Main campus with fitness center, gym, cafeteria etc. Safety policies are well though out and practiced, not just the usual CYA. Procuring the proper tools and equipment is never an issue. Technology is on the forefront. Talented employees. Great company for your resume. 9/80 work schedule for most employees.
Cons
Nepotism, leading to unqualified supervisors and managers is frustrating. Some groups have cliques where it's more important to be in them versus your job performance. If you aren't 'in' with one of the cliques you should start looking for another job. Inconsistent work environment depending on which division/location you happen to work for. At the VP level some are abusive and unprofessional, openly chastising managers in front of employees with loud, foul language. The above average salary when you get hired will slowly return to average with minimal or no raises over a few years. Low-level employees are disregarded and highly-educated employees get much respect. Managers have too much discretion for increases, resulting in big raises for themselves, small raises for their "friends" and little to none for everyone else.