Read the novel, so I might be biased- but I think the story's pretty good for the most part. One of the better revenge reincarnation stories in the shoujo genre, though there's puddles of cliche content here and there. Everything's kinda super easy for FL to master and overcome, though in most cases you have the hourglass to make you feel comfortable about it if you aren't into those power fantasy vibes like me.
The only thing I don't understand is why they had to add this whole bit about FL and ML meeting when they were little kids on the street. Literally doesn't add anything to the story or their relationship - they're already a tight-knit couple, so it feels like someone just yeeted it in because they thought it was cute and not aware of how nonsensical and outdone gags like that are.
The Villainess Reverses the Hourglass