This is a decent story line. Not really worth all of the hype many reviewers give it. It is nice to have a series of stories with the same people in completely different scenarios to see how they interact. The narrator is annoying for many of the characters he does. For example, the two teens at the very beginning were made to sound extremely annoying and unlikeable. I almost quit listening. I hung in and got used to it. He also made many other characters sound condescendingly annoyed to the point that it was irritating to listen to it. Overall, the narrator did a decent job given that he had a lot of range in his voice and I could easily tell which character was speaking. That is better than being monotone.
Only two of these stories count as being in the apocalypse genre. The apocalypse genre requires a global catastrophe (or at least an extremely large one) with societal collapse as the basis of the plot. Three of these books are localized natural disasters that cover a very small area and will be quickly recovered from after the event ends. A wildfire, flood, or hurricane does NOT qualify as an apocalypse.