Vantaggi
If you joined at the right time you rode a ridiculous series of raises, both performance and otherwise. You also got to work during periods where overtime incentives were piled on top of overtime so you could work a solid amount of OT and make a ton of money. Getting onto a team that didn't require calls meant 8 hours of listening to music or audiobooks, which was probably their biggest appeal. Quickly learning how their system really worked meant you could exceed production every week without giving it a second thought.
Svantaggi
Management pipeline as I moved up became a series of catty, cliquish people that would lie or gaslight you to ensure you couldn't move past them when it became apparent you were better at their job than they were. No interest in enforcing disciplinary action against the worst employees, but would bend over backwards to prevent promoting good employees coming in just shy of their production goals. Promoting mediocre employees because they didn't listen to their good ones, and were left with a dearth of employees with the needed experience to lead other researchers.