Speaking here purely on my own behalf, Poland has historically had among the best, not to mention, oldest, instititutions of higher learning in Europe, the University of Cracow, to name but one example!
"Historically" being the key word here. It was very long time ago, now our universities unfortunately aren't anywhere near the best ones in Europe.
I've studied both in Poland and in the UK and I can see where the problem lies - widespread cheating (no one dared even try in the UK!), lots of useless subjects, very old and incoherent teaching programs, professors being the almighty ones, too much theory and not enough practice.
Maybe in the UK they don't get such wide knowledge as we do here, but they are far far better in their one, chosen field.
I would never chose a Polish uni over a Western one.