Let me first say, I watched the movie in two sittings, the first time I watched it till the moment of her change. I say this, because if the movie has a flaw, it's that it is too slow.
I found it, by searching for some weird twilight zone kind of movies, and if you manage to watch it all the way through, it does have some aspects of this, but it is mostly grounded in reality, which of course will turn off the more hardcore fiction fans.
The movie shows the bleak, depressing reality of the countries from the eastern block, in the most pessimistic manner possible. Because of this, I think the movie will be mostly appreciated by people from these countries, but if you're an international movie fan, that considers to be interested in the harsh reality of our cultures, please have a go at it.
The cinematography and score are really plain, it's made almost like a documentary, with extremely realistic acting and atmosphere. The movie shines at showing how a seemingly good life, judged by the societal expectations of the culture, can be a real hell for some people, and in the latter part it gets more philosophical, about what does it actually mean to hate someone, and what life offers to those who choose to not follow a behaviour considered normal by society.
I liked the movie as a whole, but I won't lie that it's perfect, the first 40 minutes especially are quite a drag, but after the setup is done and you get involved with the characters it becomes something else. I also like the ending, because it makes the whole thing quite a contemplative and romantic story.
It's a good movie, I'm glad I watched it, I won't forget it anytime soon, I will recommend it to people with more nuanced view on life, but for those who think movies are for entertainment firstly, I won't even mention it.