I am the kind of person who prefers a bit of "unrealism" in a drama, it actually helps in developing interest and curiosity for upcoming episodes. It being too realistic was the problem. MDL ratings can be unfair too, 8.5 for this one is bit too much. They created way too many plots for themselves. It tried really hard to become "Because this is my first life" or "reply" but it was nowhere near them. My favourite storyline was that of Somin and Minjun's, although a very short one. And of course the OST, liked it alot more than drama itself.