Pros
You will experience more in one year than you would in a whole career in many industries. The thing you see will leave a lasting impression, setting you up for many stories to share in training. Many nice people to work with. Safety performance better than the past.
Cons
Site management does not appear serious about safety. Employees are treated as commodities and aren't trusted to make final decisions. The message from one manager to another is inconsistent. Department supervision does not always follow through with the message of senior management. Corporate organization has too much control over what each site does. They send too many tasks to the sites, destracting them from their site initiatives. Union has too much power and indirectly and directly makes many decisions for management. Can't get any proactive projects completed due to "fire fighting" and rediculous red tape from union and micro managing.