I feel like a lot of people dislike TB because they consider that it's cliché and that's it's been done before. Honestly I don't disagree, but that's just the thing: it's a high school drama about an insecure FL and a ML who helps her gain confidence...
I agree, it's been done before.
But frankly I feel like describing the drama this way doesn't really give credit to the execution.

I loved the main love story. My heart broke for Seojun, like everyone else's did, but I frankly didn't want him to end up with Jookyung. I agree that he practically carried the entire drama on his back and he's the reason why it became this popular, but I didn't mind him as the second lead, I just wish they had worked a little harder for him to have a happy ending. I feel like they used his pain to make the drama more interesting but I mean.. isn't this what writers are supposed to do? Make the story more dramatic? The ending hit hard because it made me wanna sob. That's the whole point.

So back to the main couple, i really loved them. I think they had chemistry and that their entire love story was well-written. At first I was scared they would drag out the whole "he doesn't know it's her" plot line but turns out he finds out rather quickly. People hate on Suho because they love Seojun but i just don't agree i think both characters deserves Jukyung just as much. Suho and her were just meant to be I guess. Suho went through so much and i didn't see him make one decision that was rude or out of line. I also feel like the pure, 100% love he had for Jukyung was exactly what she needed, whereas Seojun teased her too much. Although it's something, as viewers, we love, it might not be as fun for her who literally hates how she looks.

HOWEVER I loved Seojun's character so much that I really hope they write a character like him again as a main lead. Cause i agree, he's amazing. His earrings and hair and personality and naturally smokey eyes are what made this drama what it is!!!!I'm tired of seeing similar ML, although I loved Suho.

I loved Soojin's character, because it allowed a female second lead to pick herself up. I feel like male second leads are always like seojun: jealous of the main couple but still supportive at the end. Whereas the female second lead is always so toxic and manipulative. And sure soojin is all of those things but there's much more than just her jealousy behind it. You can really feel the build-up of her anger and pain because of the abuse she goes through at home. Her acting was great too.

Oh and finally the OST?? chef's kiss. Whether it's how do you do, Missing you, starlight, or even those 1:30 mins of Seojun singing flower pot? I finished the drama a few weeks ago and i still listen to all of these all the time.

Overall, I feel like you need to remember this is a high school drama, okay? It's mostly about the vibe, the outfits, the OST, the love story. Yeah it's basic but i feel like the execution is great, and I rewatched the scenes a billion times. Watch iiit and keep and open mind.