This is actually a really good read! It took some time to get into the swing of it, but it's a very enjoyable story.
In her new life, the FL is powerful, smart and wealthy, but isn't revenge-driven or anything like that. She wants to secure a good life for herself, and is the first isekai'd FL I've seen that engages in charity. She has to defend herself against a few malicious gossipers, but all in all, she builds people up rather than cuts them down.
Sylvia regularly takes actions either out of the good of her heart or out of foreknowledge of the future to save people, which tends to have bigger consequences than anticipated... but anything more would be a spoiler.
Her family is a bit of a mixed big - the father seems to be an arsehole (or at least very, very strict), the mother is barely even mentioned (but still alive somewhere), the eldest brother is absent but was apparently kind to the "original" Sylvia, the second brother starts out judgmental but corrects his attitude quickly and becomes decent (maybe even nice in later chapters), and the younger sister is genuinely good person and routinely nice to the FL, despite the fact that the "original" Sylvia broke her arm the day prior.
At this point, I honestly can't tell who the ML is, but there's no one I would veto outright.
Why and how she reincarnated hasn't been discussed yet, but there's been some delicious foreshadowing that hints at a deeper plot.
To summarize: Not a particularly deep story, but an enjoyable read that brings a smile to my face. Would recommend.
Features: Smart, powerful, casually OP FL, character growth for quite a few people, a genuinely nice sister, magic, swords, nobility, monsters, kidnappings.
Would recommend for: people who are looking for a casual read; people looking for a story utilizing tropes but deviating slightly from the norm; people looking for a light-hearted story