Windows from Poland? Looking for experiences

At this point I am cautious. I have not only heard good things about the windows from Poland. My neighbor had defects and they did not respond anymore.


If I buy it in Switzerland, there are clear rules.

I am also in favor of international trade, but I am cautious with construction products. Of course, the windows from Poland probably also have good quality. But what if there are any problems and the installer has to come. Then it often looks bad.