Pluspunten
Great place to be an ambitious engineer. Lots of responsibility and autonomy. Easy access to resources and hardware. Ability to influence the product and company. Clear high level goals and vision. You get to see your hard work launch into space. (and on a short timeline from project start) Plenty of projects. Learn a lot in a short time. Fun corporate culture. Work hard, play hard. Stock in a company with high growth potential.
Minpunten
High stress and workload. Flip-flop short term corporate directives. There are short term needs and really long term goals (medium term is ignored). Unrealistic schedules and equally poor communication of schedules. Poor mentoring, project management, and planning. The person that yells the loudest gets their way. Lots of cultural and process growing pains as the small/scrappy RnD company is growing up to be a big production company.