The acting isnt phenomenal but the movie is based on a popular book of a life in Zagreb. In the movie you will see the main character and his friends living "on the edge" everyday, husting, having fun, chasing girls. The movie is quite naturalistic - poverty, rape, prostitution, alcohol something like Charles Dickens in Zagreb.
The main character isn't very driven to live a normal life he said he would rater live a more fun but shorter life then long and boring.
I love how the movie portraits Zagreb life, "hoolingans", zagreb accent and tougher life. On the other hand the movie shows cutscenes within the movie of an interview with the main character in the streets where he gives his view on life. And viewing the movie you see his experiences and what his answers on life are based on.