for me the only good parts were these:
jiho's personality. it's so rare to have a shy ml in dramaland. tho they did treat him like a freak, it's like the dude didn't like what "insa" people liked, but was he a psycho? no..
he just didn't like attention, or crowds, or fake social behavior to please other people. he was not "traumitized". sure he had a bad past but not every "social slowness" is a faulty personality
and yes, by now you've guessed it right, it's personal xD I'm shy, socially awkward, and slow with the fun hangs, but I'm not an idiot with a rock head.
as a kid I did say no alot, and in uni I changed it to a "hmm yeah". because I didn't really wanna do it but I also didn't not want to do it

here, especially with the drinking, or the wedding preps at the end, jiho didn't "like it", maybe he is stuck in my no phase but sangeun wasn't really considerate, she wasn't pushing him out of his shell she kept dragging him out then kinda making fun of him, "teaching" him he should "be like other people"..
so I personally didn't think they matched. like again the wedding prep, he was ready to put himself through the struggle cuz she said she wanted a big wedding, and she didn't listen when he said he didn't want it big. then she goes and says she was doing it for him


anyway, atleast with jiho his shyness and lack of social personalty didn't come with low self esteem, doubt, self consciousness and ready to escape
no drama can survive that way so all of those traits went to saguen ;D
I'm glad he always said he'll never misunderstand her and he'll wait for her pov before making a judgment, that's 1000000 lvl male lead behavior~ also he was never shy or reluctant in showing intimacy which is another +A move

gwangnamah was a sweeite, it's nice to have male characters without ulterior or obsessive behavior towards the fl, most fl "brother zoned" end up with a secret 10 year crush
he was a good person, had his own life, worries and dreams, he could easily get a spinoff where he finds happiness, love and acceptance

another point I liked was the past childhood connection, and the ones that did have them ended in divorce or one sided crush which heavily highlights how a person is different from what one projects on them

I did however dislike the 5 year "eating mate" with 0 attempts at conversation and honestly the whole drama was flat with zero substance, I'd have tbh preferred them preparing for a wedding, looking more at "what people do to please others who think one should do that" while trying to navigate happiness and marriage. I also wanted a scene with a baby to show he's not afraid to show affection and she also adored her baby and stuff life that

anyway, I only started it for a mom watch, and stayed for her + jiho and tbh the last like 40mins were my favorite part of this drama xD