I would definitely recommend Jagiellonian University. The university has a lot of traditions and they keep them alive, bu also trying to improve always. Of course, as most of the universities it has, it’s advantages and disadvantages. As a disadvantage, I would mention that some of the buildings don’t have the high standard and as the best university of Poland it’s supposed to be a good level of everything.
In general, no complains. I love UJ!