This tickled all of my private places.  Ok. just the references to free culture.

Loved the reader's voice.  Liked the story.

I agree with pokey about the timing of things regarding can food, MREs et al.  But it didn't keep me out of the story.  I thought it was strange that people had forgotten so much in so few years.  But I've some real life situations where people weren't taught anything for a generation and it is a bit like this.

I liked the 'glitches' these guys mentioned.

I can confirm that the issue with the ogg files is the album art.  I didn't listen to this until after I listened to the audio book.  I had the same issue.  Downloaded fine but wouldn't play in rockbox.  A little searching lead me to a suggestion that if an ogg file plays ok in vlc other other players but not rockbox, the album art is a likely culprit.

Removed them with Audio Tag Tool and all is well.  If memory serves, the rockbox folks says it's because it only has 1mb for meta data.