Pluspunten
Every day I wake up and go to work on the most advanced rocketry on earth. The technical challeneges are engaging and the company provides all the resources you would need to resolve any issue. The pace is extremely fast and I see the difference I make on an almost daily basis. No matter how busy people are, I can get 30 minutes with almost anyone to ask engineering and business questions, and overall there's a strong support for education, learning, and growth. SpaceX has all the benefits of a tech start-up without the negatives. Great food in the cafeteria (think organic, sustainable, etc.) for $5 or less, free top-notch espresso and frozen yogurt, and an endless stream of branded T-shirts.
Minpunten
The work can be consuming, which is more of a general warning than an actual negative comment. I find it empowering, but not everyone does. Overall financial compensation may not be as high as at larger companies, but the stock, benefits, coffee, and culture more than compensate.