In fairness to the authors, I did not read much of the description of this series. My review is based on jumping into these books without knowing the premise. My fault, not theirs.
Spoiler alert!
I am not a fan of zombie novels. This was my feeling listening to this series. The “slicks” were very similar to zombies in other stories. They were relentless, innumerable, and so driven as to neglect their own greater good.
And the attacks by the slicks where characters barely escape was repetitive to a fault. Sure, several key characters did die this way, but far too many survived over and over again.
There were also positive aspects. The characters were very well developed. The similes were entertaining. The narration was excellent.
I listened all the way through. As a box set it was a lot for the money. I would call it a good value. If you enjoy zombie stories then I do recommend this series.