Every job randstad put me in was a minimum wage job with no retainability. The turn over rate at every single job i worked at theough randstad was upwards of 90% or higher, i would meet new people on monday, and they've quit before friday.
Their jobs are purely a numbers game.
If you want a real job, avoid randstad at all costs. If you want to switch jobs constantly because management doesnt give a damn, and you dont mind making minimum wage, being micro managed, and inside buildings with no a/c when its over 100 inside, then randstad is the place for you.