One Failure in it's Character key however is the Stepsisters, we have too self-absorbed women who treat their stepsister as a slave with the tendencies to be abusive and tormenting, but we didnt get that refreshing feel, like we got from the Steomother's Character, however we do have some major key plot points from the original fairytale of Cinderella and the previous installment of Once Upon A Song: A Cinderella Story that point is one stepsister is more wicked than the other, and both Stepmother and daughter are willing to let the other one fall under the bus so the most favored can win the prince and fortune. Jennifer Tilly however brought on a performance to remember giving us a more vindictive StepMother than wicked wrench we have come to learn but stays true to the franchise's stepmothers, she gives a refreshing feel of the horrible Lady Tramane we all know and hate. Well for instances it actually stay true to Cinderella herself and the elements that were not expressed enough as they should have been in the first three films, although the budget was not the best as for it's set's they really wanted a simple location to bring out the storyline, so that's is forgivable.
So you are most likely asking yourself why this film beats its predecessors.