"meh, it's ok"
I can't recommend the book for the story itself. Or for the narration. But it's not a total disaster.
PLOT: A small group of people preparing to flee a dying Earth(part 1) and fleeing a dying Earth (part 2). This includes the miserable fate of those left behind, riots, panic, the still advancing sea, and such stuff. Oh, and there was a speck of nazi-style gasing of unsuspecting elderly people by the military, on purpose and in a very systematic way, but for the life of me I couldn't understand what the point was with that. The gasing was not an emotional response done by confused and scared people, it was methodical, ordered, "our heavy duty but necessary last measure" kind of thing. So I don't get it.
OPINION: Unrealistic plotline when it comes to the Ark ship and project. The disaster on earth from the flood was on the other hand quite realistic. Inventing FTL drives in just a decade or two was also completely unbelievable. All characters were flat and uninteresting, at least to me. I listened mostly because I wanted to see how greatly the Ark would fail once it gets to the new planet and everybody dies from an alien virus or something. Which didn't happen.
NARRATION: Yeah, not so good. There's some supposedly Scottish accents, they all sound horrible. E.g. Holle Groundwater's accent makes her sound like she's deranged, not Scottish. And that becomes increasingly annoying the more you listen to it. Otherwise it's ok.