Pros
After working at several ~prestigious~ but bureaucratic and incredibly boring jobs at big companies, astranis made me like engineering again. Great environment (sick office, generous lunches and dinners from basically wherever you want, five types of granola bars and carbonated waters available at all times, really smart people to learn from and work with). It's not full of soulless tech bros whose favorite conversation topic is how their friend at Google makes more money than they do. The company's doing a cool thing, everyone there is passionate about space and building cool stuff that helps humanity. Management has been better at all levels than anywhere else I've been.
Cons
WLB is somewhat up to you but there is a culture of working a lot of hours.