Nice review. I also agree with the points about good casting and pacing. I enjoyed the movie too. The editing tricks that displayed the repeating, annoing and tiring tasks of motherhood were particularly innovative and fun. The film also seemed a quite honest and refreshingly sober take on motherhood that we don't see often in films. However, I felt that the formation of identity and postpartum depression as topics were dealt with little too superficially. I am not quite sure if I agree with your point about the film being "a love letter to motherhood". I think it is a quite honest take on motherhood, but it is more like an undestanding thank you note than a beautiful love letter.