Just three episodes in, but I find myself literally unable to watch more.
The positives:
* The acting is actually quite good, IMHO -- the female lead is (appropriately) reserved and careful; the male lead youthfully smiling and happy. I actually love the secondary characters in this quite a bit -- their stories are ones that I might actually want to know more about :)
* The weather component of the show really captures attention! One positive thing about the Netflix Kdramas lately is that they are based in unusual and interesting settings, so that one learns a little bit about these different jobs that are all around but we don't think about much.
* The visual feel of the show is very nice.
Now for the negatives - listed in order of their awfulness:
* The relationship between the leads: It's not the age difference (not a big one, and its existence will likely play a role in later episodes), or lack of chemistry between them (again, we do not expect that at the start of the show -- it's supposed to develop) -- it's the work dynamic between the two. As a female executive, I felt revulsion from the very start -- to begin with, he calls her emotional, goes over her head, and acts pretty much like every stereotype of an overbearing guy in the workplace. And, of course, there are no real consequences to his actions. And she just lets it go! Completely forgotten by episode 3. Frankly, that did it for me -- I cannot imagine a circumstance under which an actual woman would ever get together with a man who did something like this.
* The two "exes" in the show are so atrociously repulsive as to be completely unbelievable. These are people our leads have known for years (decades in the case of the ex-boyfriend) -- and just now is when they find out what horrible people they are? Again -- completely unrealistic -- no one can "play" nice for 10+ years. It would take much too much energy, for one thing.

I am willing to suspend disbelief for a good show, but these two negatives are simply asking way too much.