What it is like here
Vocational and specialist training in Poland is inexpensive and carries EU recognition, and the same post-graduation work rights apply. The honest limitation is reputation: there is no Polish equivalent of an Italian culinary name or a German apprenticeship system, so what you are buying is a qualification and a labour market, not a signal.
How the process works
Check the qualification is recognised where you intend to use it
A Polish vocational certificate carries in the EU; outside it, verify before enrolling.