Perhaps "patrik" would like to show us some evidence of his claims that they are a terrible company
I can speak from experiences with that particular company in Germany. Firstly, that company owns many other companies which give different industrial services. In many cases they hire foreign people (such as Poles) to do the dirty job. They are offered contracts in which the working time is 40 hours per week. However it is stayed that it will be required to work extra-hours and there is no payment for those extra-hours. You will assume, you would probably have to work 1 hour more per day as a maximum. However this is not the case. I know from some cases in which that company expects people to work 84 hours per week ( 12 hours shift, plus Saturday and Sunday) with no extra remuneration. A German wouldn't do that, so they hire Poles (or other foreigners) which don't know very well the German laws thus they can be easily exploited by the company. If those foreigners reject to do so, they get fired immediately.
It is firstly against the German law to not pay for extra worked hours. If it is stayed that 'extra hours' are included in the salary, it should be clearly stayed how many hours are included in this salary. Many foreigners do not know that and the company takes advantage of that.
Conclusion, that company treats no-germans worse and has a slave policy towards its employees. The same company is making enormous profit out of Poland as a garbage collector and still treats its employees like cr*p .