I tried to watch this drama several times but I couldn't. I really tried, and every time it was as if something was blocking me. I felt very annoyed because I didn't understand WHY: this drama is so well scored here and I couldn't find my interest in it. I put it on hold for several months then stumbled upon a video on youtube...

this was this drama's recap. in 1 hour. as I already watched the first 4 episodes, I could evaluate the rightness of the recap. and it was very good. so I watched it instead, and faced the same problem: I really really don't like this drama. I can't watch it. and as it was very fast and clearly explained, I understood why:

in order to get revenge and catch her ex-husband, the MFL became a villain herself. it was like watching the birth of a bad person. it was unsettling and sad. it was like driving slowly in order to see every details of the car accident you are passing by. that's really something I hate and I don't do that.

so if you love bad people to be rewarded, just watch it. and if you want to know if you could love this drama too, with the recap, the name of the video is "from an ugly girl to a beautiful goddess", on youtube. if you like it, just stop watching and go for the real thing, if not, it will save you some time.
as for me, I wouldn't recommend.