I listened to 4 seasons over a cross country drive. Season 1 the intriguing idea was introduced well. It's captivating for the imagination. Season 2 flounders - two of the three main characters don't really do anything or make any advances towards their destination, and that's over 16 episodes. Season 3 repeats the formula with the same main characters who were stagnant in season 2, but it is executed better. The tertiary characters are more complicated and have a reason for being there. Season 4 seems to learn, and those two main characters start making real advances towards their goal. Unfortunately the strongest character from seasons 2 and 3 becomes very repetitive and petulant in the 4th season, but maybe that's natural for the end of the world. Season 1 made particularly good use of sound - there's sometimes almost a minute of mood foley to represent changes, and it's very effective. Season 2 brought some additions to the music team, and the industrial music transitions just don't work for a while. It's reigned in, and in later seasons is used as a seasoning instead of the whole meal with nice effect. I think the good idea really makes this a worthwhile and enjoyable listen, but there are a few warts. The most glaring - "Jesus." I listened to Tower 4 before End of All Hope and was irritated with just how often the main character in that show responded to every piece of exposition with "Jesus". It never really feels natural in the conversations and only one voice actor really sells a single delivery of this. It's especially difficult with the Jack Austin characters in both shows. This voice actor creates a lovable character in both shows, but doesn't modulate his intonation very often and uses a predictable cadence, so having the line "Jesus" in every conversation he's in starts to make your eyes roll. It sounds the same every single time. It actually caught me very off guard in Season 4 when Kylie uses one "Jesus" with natural rhythm and inflection. I don't know if there's a magic number, but 4-12 uses in every episode is too much, and it comes across as the writer's ways of telling the audiences "We just gave some exposition ". The other only nitpick starts to become pervasive in Season 4. While i think it's a strong, very enjoyable season, characters begin thinking for the audience, and it doesn't work. Every time Mark gives a command in a tense situation, Ava turns to the audience, saying "Mark was right". It completely interrupts the flow of the scenes. Again, this is a very worthwhile podcast and I would absolutely recommend it. It felt like it should only have been 2 seasons long in total. I would have rated this higher if it had reached resolution in season 2 - good, bad, melancholic, whatever the endgame is, but appreciate the improvement in the characters' agency in Season 4. I think future episodes could be improved if a few of these writing idiosyncrasies were tightened up a bit.