So, I have been reading on that website (glassdoor.com) for a while now and I must say it looks really scary what most of these folks have to say about working for these new space companies (Bigelow, SpaceX, etc). Now I know you can't keep everybody happy and that some times people will write negative reviews because they were fired for being a failure without realizing it and stuff like that. But this can't possible be the case in all cases, so when the overall trend seems to be that benefits are crappy, the days abnormally long and the turnover extremely high... how can companies survive like that? Because with a trend like this it seems to be that eventually they will start burning through interns/employees faster than they can find replacements!
Just to be clear, SpaceX is rated 3.9 out of 5, which is the same rating as Apple, for one. SpaceX should have absolutely no problem filling its roster with capable folks, so no, it is not at all alarming. Quite the opposite.United Launch Alliance is rated 2.6 out of 5, which is just ahead of Bigelow Aerospace at 2.3 out of 5.Note re Bigelow: it has gone through various layoff cycles. I am sure that this has impacted the score.
I really get the idea that for a company like SpaceX it is a specific person they need. Like, a single 20/30 something engineer that just loves/lives for working at SpaceX will last a LOT longer in their work environment than for example a father of 2-3 in the same age group since it is just impossible to combine such a workload with a proper family life.