This is a more character driven, than plot driven series, and I don't hate it for that.
I came for Lee Jin Wook, and honestly I stayed for him, since watching him play such a polar opposite character to that in Bulgasal or Sweet Home was refreshing, and adorable. Also Lee Jin Wook has truly one of the most stunningly charming and mischievious grins ever, and he wields it shamelessly in this!
Ha Ji Won wasn't initially my favourite, but she quickly grew on me, as I loved her characters self assured, independent streak. Even if I had a few issues with how meek she tended to be around the 2nd ML.

From the Leads families, to their friends and work collegues, the various relationships are almost always incredibly warm, supportive, and hilariously silly in ways only long term friendship and family can be.

This isn't a super deep show, but it is thoroughly enjoyable and something to watch if you need a break from massive amounts of angst and drama.