I was told this kdrama was really good, but, to be honest, I never expected it'd be this good. At first I had some problems with the female mc in one hand because I've seen the actress in her role as Tammy in Search:WWW and she was my fav character, so at the beginning of this drama it was difficult for me to not look at her and think: Tammy. The other problem I had is that at first I couldn't connect with her that much, but it was mostly that she was also putting a wall between both the male mc and the viewers.
I loved the 3 characters, they felt like a unit and let's be honest, they weren't a love triangle in my eyes, they were a poliamory ship. I really enjoyed both timelines, and while the past one was in some cases more interesting, I think the present times didn't loose because you could see them coping for their past and being their present selves. They weren't just his past selves because they started to remember, but the drama makes a point that even if they're their past lives, they're also their own selves with their own life experiences and feelings. I loved how the drama took the time to develop their friendships and feelings in an organic way that didn't feel forced.
The acting was excellent, specially the 3 mc characters and the step brother. With Se Joo's family I wish we had more development. Because I found the step brother to be more complex in the past and repetitive and tiring in the present. That whole family was fucked up. And I think that even worse than the son and the mother, the worst person was the father. He saw what they did to See Joo and whined about it to See Joo, instead of actually putting a stop to it. Like, they've been abusing him for years and years and you do nothing about it and then lament about it happening? You're the same level of trash or worse.
I also felt Seol's cousin obssesion with Yoo Jin Oh tiring, annoying and pointless. I don't understand what was the purpose of it, he could've contacted the medium through a different way and the scenes were just ugh.
Overall, I loved the drama. And I think this will be one of those dramas I'll rewatch multiple times and enjoy it and it'll ocuppy a place in my heart. I'll always remember them being happy and silly in Carpe Diem and hope for their reunion when they're able to meet again and be happy.