This is a difficult film to rate for a few reasons. If you like a conclusive ending whether its happy or sad, or like a film with a noticeable deeper meaning then this may not be for you. If you are fan of well done cinematography, are a major Japanese cinephile, or like film meanings that are open to interpretation then you may want to check this out.
This film is at times bleak, dark, and brutal. It also has moments of hopefulness and lightness. You will be on a rollercoaster!
The acting is well done, especially the lead actress who does a very good job as the titular Ann. There is no soundtrack at all in this movie which can at times be a bit unsettling, but I believe that's the point.
I gave it 6 stars because it wasn't really to my taste and I did not like the ending, but as stated the acting and cinematography were good.
I'm sorry if this review wasn't more helpful but it's the best I could do without spoilers. Whether you like this or not is really going to depend on your personal taste in movies.
