Not bad. It was quite simple yet intriguing. 

While the book isn't memorable and probably won't leave a lasting impression, I still had a good time when reading it. Chloe was a nice girl and so was her best friend. I liked seeing them go through ups and downs of their friendship. Adam was also a fun character despite me not being really into the good girl x bad boy trope, their romance was somewhat cute.

Chloe's journey is believable, from the point when she wakes up with no memories to when she finally solves all her problems, making mistakes along it and apologizing for them. 

The villains didn't have any depth but I guess that is what made this story simpler, which isn't really a bad thing. Some plot points were predictable, and some made you want to confirm whether your theories were true or not.

Overall it was nice. It's the kind of book I would recommend to those who are looking for a simple thriller.