Okay, I admit, the storyline was a bit interesting - although it is a bit common. The reason I was able to watch 25 episodes was because i fast forwarded the 30 minute episodes due to boredom to:

1) the main female lead. The drama wants to portray her as a goody two shoes, saintly good girl but she just becomes annoying and annoyingly nosy. maybe it's because of her personality, it doesn't give out a sweet innocent vibe.
2) the chemistry between ML and FL is just boring.
3) the male lead is such a dork.
4) the Dream Food family as a whole. the Father CEO and the "real" mother of FL relationship is such a drag.
5) the Dream Food CEO's nephew and FL chemistry is a FLOP. No chemistry at all. UGH.

There are some good parts tho:
1) Villain female's acting is good to the point that you root for her LOL. I was yelling, "switch the baby!" rooting for her.
2) the Villain's storyline is kinda like pitiful, although the mother was evil but you know how emotions will take you when you know your husband cheated on you.
3) the Grandma Bobaejung is cute.

I can easily predict the ending though.

FL gets divorced. Dream food CEO's nephew is divorced and will get together with FL. FL's baby didn't die - she was adopted by Nephew's family with his auntie (real mother) DF CEO's 2nd wife as the grandma. ML will be together with female Villain, their daughter Soo Yi is their daughter anyway. Annoying FL will be proven the real granddaughter - lives happily with Ahjumma and An Na (adopted daughter of nephew). Meanwhile cheating ML ends up with female villain and remains poor.

ALSO ... WHO WOULD WANT TO WATCH 120 EPISODES OF THIS BORING PREDICTABLE DRAMA? Please end it at 25!