There are a lot of reviews and others have already pointed out some points I agree with but I'm not sure why they all gave a rating of 8, when this drama is a 7 at most. As another reviewer said, this drama is quite monotone (I never found myself excited/really happy/anxious). I really liked the set-up of the story with the fake amnesia. There were definitely going to be some tropes in there (rich CEO does what he thinks is best for the girl), but the execution/storyline was just plain and offered no twists, every possible basic cutesy scene somehow executed in a repetitive lame way (might be something to do with the chemistry or acting), and very uneven pacing (a very draggy middle and very medium-paced beginning and end).
If they somehow managed to pull of a unique storyline (which I was expecting) and cutesy scenes, it could've easily been a 8.5 or 9. One thing I did like was the OST, specifically the song at the end of each episode (can't tell if part of the reason is my eager to get through the episodes). If you have extra time and are comfortable with skimming/skipping through a few scenes in the middle, this drama might be for you. The beginning and end is good though, so at least you won't feel unsatisfied.