If you are in the mood for something light hearted and fluffy, feel good and cute, then go for this. There is nothing really special about the characters but the way their friendships, interactions and feelings are depicted makes you feel included into their world. The ML and side characters are quite charming and funny. The best parts of the show were when all the friends were together celebrating or just hanging out. There wasn't anything special about the FL character, her story felt too melodramatic and pathetic, nevertheless her optimism in the face of it all that everything will still be okay and the future could still turn out better was quite inspiring.
Coming to the negative aspects of it - I didn't feel much of romantic vibes between the main leads but there is a depth of feeling in their friendship which makes it somewhat worthwhile. At no point do they show the FL developing any romantic feelings about the ML. Her choosing the ML over the boyfriend in terms of priority could simply have been explained as loyalty and genuine friendship where the situation required her to absolutely be there for there for her friend the way he was there for her. Maybe that's why their romance is left till the very last episode. The way she quietly left with her boyfriend without a backward glance at Tae after he was there for her on her most difficult day felt cruel and thoughtless, not in line with her character at all. it feels like the FL was too self absorbed to bother to understand all the family issues of her boyfriend who deserved more, or even the feelings of her best friend Tae. It would have been more fun to have some cliched scenes of jealousy and possessiveness between the leads to show their feelings change, rather than just verbal expressions of it towards the end.
I'm happy the second lead didn't go off disgruntled and heartbroken, but was given a somewhat graceful exit saving face. To sum it up, it was a one time pleasant binge watch experience but not so special that I would rewatch it.