Short and good or long but dragged out?

I noticed that manhwas rarely stop when it'd be logical to end it and bring up new problems for the characters which are most of the time an abusive parent, an unexpected love-rival or a stupid misunderstanding. But most of the time I see many people being happy with it bc at least the story didn't end and they love the characters. So is it better to have a satisfying ending but the story is shorter or much longer but the drama is already dragged out and unnecessary?