Storyline held my interest in general. At least kept me engaged while walking the dog. My frustration is on two fronts, First, I have never listened to an apocalypse series that dwells on the quest for sexual relationships as much as this one. On and on and on! Perverts, sex slaves and deviants abound. At this point I think the author has unrequited needs of his own. Second, taking the life of another, in my mind, is a serious and emotionally devastating act. Nearly from the beginning, the taking of life was thoughtless, frequent and without remorse. Not a bad listen if these two element were not so dominant.
WTSHTF, I think that daily survival will be much more challenging. Just saying.