This k-drama is commonly a show that you would watch first before watching others, this comes from other reviews i've read about the show. It's a show that you would kind of call a classic in the k-drama universe.
This is the first k-drama that I watched. My first thoughts were thinking that it was kind of cringe, but later on I realized that I had some sorta liking to it.
There are also other versions of this show. When I same other versions, I mean like there a different shows that have almost the exact same storyline but with a twist. E.g, Hana yori Dango (Japanese), F4 Thailand, Meteor Garden (Taiwanese 2001, Chinese 2018) and a few others. This show is a good first.
I totally recommend watching this. I liked this show because of the storyline mostly and because of the characters personalities. Another thing I liked about this was definitely the music. *This is my opinion*