The key here is to approach this drama with tempered expectations. Its primary driving forces lie within a heavy love triangle and a big play on "memories from past lives". If you can't tolerate either elements then maybe you should skip it.
However, what stood out the most to me is who wrote this drama. I noticed that, this writer, across her other previous projects, she harbors a discernible aversion towards the institution of marriage, a sentiment that seems to have a deeply personal resonance for her. This notion was amplified even further in this particular drama. She took it even further by carrying her agenda across all of the side couples blatantly. Speaking of agendas and taking things personal, this writer really likes to shove her owns while disregarding its effect on the coherency. Another example, the whole ordeal with both male leads at the beginning. There were other examples as well.
While any writer is entitled to hold any opinions or take a stance on social matters they want, it can become a headache and burdensome when these viewpoints are overtly thrust upon the audience without contributing anything substantial to the broader conversation. They just end up shouting into an echo chamber eventually.
The final episode, unfortunately, proved to be an insufferably superficial culmination of the drama.
