Pros
Look, I'll be completely honest, I don't have much care for a "work-life balance" like people like to drill on about nowadays. With passion comes a willingness to compete, succeed, and innovate, and become good at whatever it is you want to do, and that takes time. SpaceX provides you with all the tools you need to succeed - I have never had any issues finding work to do, or receiving challenging engineering problems to solve. But with a lot of responsibility comes a high time committment. If you want this to be an average job, I'm sure you can make it that, but I also hope you know you won't be relied on too much, because this place is filled to the brim with people willing to put time, work, and a lot of hours into the most innovative and ground-breaking technologies happening in the space travel industry.
Cons
Sometimes they don't have vegan froyo. Also the vegan chick'n fajitas are pretty bad.