Life at Poznan University 4 year Med Program?

I am in college in the states and thinking about taking pre med classes and applying to this university (4 yr md program). I am curious of how much time you all spend going to classes and studying each week (if there is still time for a social life and to see the other European cities), how many days out of the year the program lasts for, and is it wise to learn some polish before arriving there.
Any info would be awesome, thanks