★★★★★ Masterpiece. Definitely going to rewatch it. Maybe more than once
★★★★✩ Very good. But something is still missing. Rewatch material
★★★✩✩ Good. But not 'that' good
★★✩✩✩ Average. Meh... it's okay, really. Nothing special
★✩✩✩✩ Bad. I could barely finish this

Unfortunately asian comedies are not for my taste. I don't like medical dramas either. There are a few exceptions though.
What I like the most: mystery, history, detective, action, military, business genres and the so called korean "revenge" type of dramas.