I began watching it today, and overall, it's okay. The acting doesn't stand out, and the storyline is quite standard. Predicting the plot is relatively easy, but I still find it somewhat enjoyable. The characters aren't particularly well-developed, lacking depth and coming off as basic. If you're looking to pass the time, this show might suffice, but I wouldn't classify it as a must-watch for quality entertainment.
Some things in the show don't quite add up, and some of the characters' decisions come across as oddly illogical. It's frustrating to see them make choices that don't make any sense at all.
But I'll give it a try. I've just watched 2/3 episodes. Maybe it'll get better later on.

[Spoiler Alert]

One particular annoyance is the characters seemingly oblivious to obvious signs of a curse, like the victims having white eyes. It's baffling how the best friend dismisses the idea of a ghost despite clear indicators such as phones not losing battery, everyone falling asleep simultaneously, and more. Additionally, it's irritating that the best friend doesn't make a real effort to assist the main character when she's thrown into the pool or is drowning. Instead of actively helping, she just stands there uttering, "no, don't!" without taking any meaningful action. Wouldn't even suprise me if something is wrong with her.


[SPOILER END]

EDIT: I just finished watching it, and I have to say, it got better as it progressed. I wouldn't call it a masterpiece or a must-watch, but it's not bad either. I enjoyed the plot twist and am hopeful for a season 2. However, I still found most of the plot to be quite predictable, and to be honest, not much of it shocked me—except for the ending plot twist, which genuinely surprised me.