No opinion on whether to like or dislike. At times, long drama episodes provide more information about the story. This is true for period or historical dramas because most drama of the said genre were based on historical facts and have to be presented as accurately as possible to the viewers thus more scenes and episodes were needed.
Like - For one, I have lots of faves on musicales. I like Miss Saigon, Les Misarables, the Flower Drum Song, The King & I, Annie and Aladdin, the musicale. I can watch and sing along 'em all over and over again.