Oh my God.
I tried watching this drama a while back but I couldn't really progress as the pace is really slow so I dropped it after the first two episodes. As a fan of SITR and as a huge fan of Jung Hae In (I just finished watching D.P. 2), I decided to give it another try. And I have to say that this time I really enjoyed the slow pace, the mellow atmosphere of the drama. I even liked the soundtrack, which can become a bit repetitive, and that was one of the biggest problems usually being pointed out about OSN.

But, as I've continued watching, I have to say that I've grown extremely tired of the same dynamics that keep going on since the 6th episode. Gi Seok is a literal parasite and a stalker on top of that, I can't stand him, I hate him with a burning passion. And I can't really tolerate him on the second-last episode STILL trying to marry the FL behind her back, hiding behind his father and his father-in-law's backs, like try and have some dignity man.

So, I'd say that if you are a fan of slow paced stories and of the two leads, you should definitely give this a try, the acting is absolutely on point and I've loved some of the supporting characters.
But the show can get really frustrating at times, so if you are not fond of family drama/love triangles/miserable second leads, you can skip this one.