Shadow Memories isn’t a chore to read, because it has very short chapters and constant action. Unfortunately, it has very short chapters and constant action… so it’s hard to connect to the characters, and the plot comes across as very confused. Some major stuff is just skimmed right past, while an undue amount of time is spent on a guy who thinks his wife is cheating on him.
It takes too long to get to the conspiracy/alien stuff — at least in any detail — and the main POV character is just infuriating in his complaints about sleeping on the couch like his partner owes him sex just because he exists and hasn’t actively done anything annoying that day.
So, not for me. It’s pacey enough though. Some people might enjoy it.