It's good, but it only dips a little bit into the masochism of ballet. It's still a good start, even if the main character's life is wicked distracting.
That masochism is a part of what I find odd.
What, that they have to starve themselves to get that swan shape and be easier for the male dancers to throw around? Or is it that they have to practice and stretch themselves to absurd points just to be "good enough"? Is it that they have been doing this to themselves since they were little kids, like a violin player?
It is truly suffering, but in the name of art. Art is the best and arguably most meaningful reason to suffer if you ask me.