So there is nothing new in this drama... same tropes and troubles.
BUT I really liked it!

The ML is really cold to everyone but the FL, which is actually really nice, because he just shutdowns the competition like a pro!

The FL is so good! She has this fussy bossy vibe, but she stands her ground, doesn't let people walk all over, but at the same time she is a really nice person.

The secondary couple was bad, I mean the girl has just so much baggage and inferiority complex that you just end up disliking her. The SLM could do so much better, but its a drama right?!

I absolutely, freaking LOVED the OST!! It was really nice, and the instrumental versions were also good! (The songs she plays on the piano are also nice).

It was a worth watch (but right now the subtitles are machine done, so expect frustration while reading them...)