This was a very entertaining romcom. The entire cast was great, Park Seojoon did not disappoint & Hwang Jungeum was especially great, this was my first time seeing her in a drama, but I do remember her from Runningman, she turned out to be a surprisingly skilled actress.
This drama is very similar to Fight for My Way & Secretary Kim, not because of the main male lead, but rather it has a similar vibe overall. Here unlike in the 2 mentioned above there is stronger triangle/square, but luckily compared to other kdramas they didn't overdo the makjang & the second leads gave up before I lost my patience with them.
I loved episodes 13-16, essentially we've gotten like a 4 hours long happy ending, they didn't even overdo product placements, most brand names were taped over.
I'm detracting a point from my rating, because the big misunderstanding took way too long to resolve... Sure the story is a bit of mess at times too, but it's not like we watch this genre for the story, right?

(The foreign actors were terrible as per usual, even the English phone conversations were embarrassing to listen to, but this is the same in all kdramas...)