To start off, they both feature really satisfying, wholesome friend groups. I feel like both these drama feature genuine and realistic brotherhood and friendships.
There's a group of people of different age and background, who decide to stick together and realize their passion, experiencing all sorts of things together, both good and bad. They are all understanding, caring and inspiring. You will watch both these drama and end up loving EVERY single side characters because the interpretation is so raw, realistic, life-like and beautiful.
And both the main couples have healthy, mature relationship. No misunderstanding, no break-up just pure attraction since day 1.