First of all, EVENTS did not so much repeat itself, and its watchable.

Long dramas or "soaps" have their own kind of fans. Not everyone can endure such long detailed movies.
The drama characterize the reality. they put real life problems into something to watch. Not every one might watch these kinds of events because it really reminds them with the THE real issues out there.
The show is very interesting, its out of the cliché storylines we usually watch.
Its full of cliffhangers in each and every episode . Something you might expect and somethings you wont expect.
The characters always develop into new phases. monologues and dialogues did not repeat itselves,
The music was very good actually. Osts always contribute much to the drama. and it actually grows on u. u feel humming the music wherever you are.
The story line itself, is a bit interesting, no memory loss, no one comes back to life, no body switch.
It is not re-watchable though, it will be well predictable if you wanna rewatch it. it will be easily hints spoilers cz u will never forget what happened. its because the kind of reality characterization.
if you are not into long dramas, haven't watched any yet and you wanna start watching soaps, don't start with this one. find yourself a 50 long episode or maybe a 30. if you are a first timer you will be sort of bored. BUT I LIKE this one so much. i cried, i laughed, plotted schemes with the characters, shouted with them. and i had my closures as well.