SPOILERS BELOW
Most of the characters behave like idiots and miss the absolute most basic questions to get to the bottom of their problems, even when presented with a seemingly all-knowing computer.
Esper shows up once at the very start and once in the final few missions both for a couple minutes of a 60 hour series. The “Half Devils” are slaughtered or converted to a cult seemingly at random to give the new threats a sense of gravity before we come up with a new species that’s magically able to just thrash them with ease. I love the attempt to flesh out the characters but this was a slog to listen to (the narrator was great, the writing just felt deranged at times.)
I wish they spent a bit of time to get the relationships better because those felt half baked before being cast off. The Ruckers get only passing mentions and none of it involves Don’s death? This was an enormous issue and it’s never even mentioned as far as I recall.