I'll keep this as spoiler free as possible.
The story is quite interesting, an author is getting sucked in her own novel to change the ending and she falls in love with the main bad guy of the story.
I was casually watching it and found it quite cozy and fun, however the ending was what for me made me rank it kind of low.
It is not for all and I felt like they added unnecessary drama just cause "why not".
You can't always have a happy end for all, BUT make it make sense if you choose to do it.