That's a whole level of scary for me, but I want to do this for her and so help me God. I'm just worried about surviving there and work, not the lifestyle and culture or religion though.
we are about to enter 2013 its a very different Poland to 1993, it is not going to be easy especially if you do not speak Polish with this in mind I would suggest you find an intensive polish language.
Regarding her parents - all good parents wish to see their children happy and peaceful in their lives. Learn Polish and you will be 70% of the way there.
Good luck with the move.