Pros
Good opportunities for career growth and movement within the company. This could be a good first job for people. Unfortunately, company needs to work on compensation, work/life balance, and how they treat their employees to be able to retain them, and promote employee satisfaction. This is probably why there is a high number of young engineers there; however, most of these engineers leave within a couple of years to companies that treat them better in the above described areas.
Cons
Expectation here is that work takes priority over all aspects of your life. Continually rotating schedules, e.g. first shift, swing and grave, sometimes weekend work, sometimes on call. It's hard to plan out your personal life with all of this. Salary is not good, and adding the hours you will be working plus personal sacrifices does not help.