So two comments with strong opinions and they haven't seen the movie, well that's Bulgaria for you!

For those of us who have left Bulgaria and have come back this movie is great, but for most who have never had to struggle with new life elsewhere it will never home-in.
He didn't accomplish anything in his life? Well not everyone who leaves Bulgaria becomes rich or achieves anything up to your standards (dear bulgarian friend of Karolinka), and not to get all sentimental and shit but he does something with his life at the end of the movie, finds his true love.