Are you willing to live in a sketchy area, with roommates?
Are you willing to work at all hours as the norm, and have little time for life?
Are you willing to spend time in traffic everywhere you go?
Are you willing to fight really hard to make friends in a city where people fear making friends (aka Hollywood culture)?
Are you willing to live in a city with progressive social norms, where churches are small and rare, taxes will take an extra 15% of your income, parking is not free, and everything costs more?
Are you willing to work within the Elon culture, which is not fun like other tech companies? He pushes for the sake of pushing, and the culture is aggressive and impersonal.
Are you willing to work with no support from management, or maybe managers that make things less clear/more difficult? Your manager may be your age and amazing technically, but have no clue how to lead or manage.
Are you willing to never get a promotion unless you work longer than anybody else? Everyone at SpaceX is ridiculously smart and hard working.