The audio absolutely MADE this for me. Ray Porter is fantastic at giving the narration life and emotion, and they did some damn clever and interesting stuff with

Spoiler

Rocky as Grace first meets him, and then as they both learn each other's language. Rocky's lines all have a neat chord-like synthesizer change to them to truly give an idea of what he might have sounded like to Grace.

Was this pretty much The Martian 2.0, from Grace being just like Mark Watney and sciencing the shit out of all his problems to having flashbacks to Earth coming together to save humanity(/Mark)? Yes.

Did I enjoy every single bit of it and cry at the end? HELL YES.