Six years after the air date, here is me take on the show (for those who have been waiting with baited breath):
It is surprisingly engrossing!
Yes, it is filled with cliches, but they are handled well; it has some very bad relationship dynamics (lots of grabbing and manipulation and emotional cruelty) -- and that is NOT OK -- but given the heightened emotional stakes and the overall melodramatic tint of the show, it's less atrocious than it would otherwise be; a lot of the story is not realistic at all, but it is relatively logical and it actually flows at a reasonable pace. In all, its weaknesses can be overlooked because it's fun!
The acting in the show took me by surprise, truly. I have seen some reviews criticizing the female lead for some "shouting" and such, and there is some of that, but it looks like a sizable proportion of it was written into the script. I am basing this on the fact that the show cuts to people's reactions to the character's loud behavior -- so this was asked for, and delivered as asked.
Will not be rewatching it because it is simply too long for that, but I do not consider it time wasted.