I disagree with the 1 Star review who says this movie has no reason to exist. Everyone is different right? I'd say mental illness is one of the more worthy themes to explore in a film.
It's really well edited and shot. It's got some laughs. It's a bit erratic and dark and anxious, like the main character. The music and sound design is great. I'd say the 3 principal characters (Madeleine, her mum, the director) all give performances worthy of an Oscar nom. Yep, it's got an experimental vibe, it's kinda weird, but it's not eraserhead weird. Enjoy.