I've started watching this drama since its airing time and unfortunately not all episodes have been subbed so, if you don't feel too much confident with your japanese, I suggest you to wait. (Hopefully not a life time lol)
After this preamble, I'll tell you that this drama can be a challenge for many lol
The main protagonist has really a weak personality and that can be frustrating most of the time. But it's always nice seeing as a person can turn into a new leaf thanks to one's own effort and love.
As for the villain, he's really psycho lol, but still we shouldn't see everything as black and white. I'll let you be the judge of that.
Why don't you give it a shot?
That's it. Enjoy ^-^

P.S. sorry for any mistakes (English is not my first language)