Pros
The work is highly interesting. The work is also incredibly rewarding because (a) you see it actually fly in a timely manner and (b) you know you are dramatically changing the world for the better. Years in I still find myself awestruck when I walk past a rocket being assembled on my way to lunch, or when I sit in the control room and see something I made do its thing in space. Watching a successful launch and landing is spectacular - it replaces the feelings of nervousness and excitement I used to get watching college football games, except now the outcome actually matters. It feels great to work your butt off, see it succeed, and then celebrate with your co-workers. Everyone believes in the company (it would be hard not to at this point) and it shows. It's also crazy to imagine that when the first human steps on another planet it will most likely be my designs that helped get them there. The company is small enough that you are not a cog in a wheel. I may have one of the more interesting jobs, but on a daily basis my work varies from sketching up high level designs to writing simulations to working hands-on with flight hardware that needs to be integrated tomorrow. It's hard to put this one into words, but there is a kind of freedom to look at the big picture and do things the way you think they should be done without being overly constrained by what worked in the past, while still being given the systems and tools and support you need to ensure a successful outcome.
Cons
It's difficult to plan vacations because the launch schedule is always in flux, and sometimes you have to cancel plans. Also, sometimes you need to sprint so hard you can't even find time to do laundry. The rate of turnover probably makes things harder than they need to be.
