High work schedule flexibility, R&D settiing enables and promotes opportunity for creativity, non-rigid management structure allows for some lateral mobility in various projects (all contingent on particular projects/budgets and project managers and for the time being).
Cons
LOW PAY, and LOW PAY ADVANCEMENT. Typically far below positional career standards. Recent developments are geared toward surplus of revenue for parent company at the high cost of stunting creativity and recognition and employee compensation especially for 'heavy lifting' employees.