It's plot is great, but it falls short with the characters a bit.....
Ok first off lets start with Peach, Ok listen I LOVE the fact they through out the damsel in distress role. Peach has shown us she can be canonically badass, especially in smash!! But she's also very primadonna and graceful about it. All of her personality traits was washed away, her characterization did not fit her at all in this movie. I expected her to be very graceful and take almost a wise and sophisticated personality. Instead she was basically Princess Daisy. Honestly they totally could have added both princesses as a nice way to balance it out. Having a tough girl and a wise girl. It just felt very off with Peach in this movie..... The only thing I liked was her getting the motorbike and tracksuit for her kart.
It sucks that media only thinks they can have a tough girl if she acts all cocky and tomboyish.
you can totally be hyper femm and graceful while still being a badass.
on the contrast, I think they did Luigi really well, he's one of my fav characters and I liked seeing him being characterized the way he should be. Gotta love my coward hero.