The characters were cute, however I think that compared to the cast, the plot lacked a little. For example, it was like a mix of "Boss Baby", "Monsters University", and "Toy Story". If you watched the movie, you probably know why, but the idea of a final race where the popular team and the underdogs team face off reminded me of MU. The factory making the dolls reminded me of the factory at the beginning of Boss Baby, where the babies are sorted off into workers and actual babies. Moxy wanting to be played by kids seemed a lot like Toy Story, and also of Toy Story 4 GabbyGabby, even thougy TS4 came out similar to Ugly Dolls. The plot seemed a little forced, and the sudden mood changes seemed really random too.
Although, I do think that a lot of detail was put into the movie. Like the bubbles in the washing machine.
I think the part that was most unsatisfying was the plot.