I can always explain why I liked a drama even if it's not my usual type. I loved YWCFTS but romcoms usually aren't my thing at all. I actually started it thinking I wouldn't like it, but I love high end fashion and wanted to watch for that. I binged watched it despite the romance because: I loved the lead character and found her relatable, the fashion was great, Shin Sung Rok's acting made me fall in love with him, there were other plots outside the romance, and the humor was my type.
Who Are You - School 2015 is a drama where I felt took a turn for the worst, but I loved too many things about the story, the characters, and the acting so I was sucked in despite how it was progressing.
There have also been dramas I've watched in the past that aren't objectively great dramas but were really entertaining and a light watch, so I enjoyed them enough, like You're Beautiful.