I know people who have. From what I gather it's pretty crap, especially for any partner who might go with you but tolerable if you're doing it for a couple of years to bank the tax free cash and have no ideological qualms about it.
My grandad worked there in the early 80's. Got arrested for tripping over a sheikh when pissed, and unwittingly witnessed a public execution (no joke). I don't think he wants to go back.