I love audiobooks. There are some amazing books that are narrated by Wil Wheaton
He sounds like a fucking meme of someone reading a book and trying too hard to inject character. He also sounds like he's chewing marbles when he talks
Book - Warren the squirrel looked in the mirror
Wil - Woaaaarn thu squooooorl lucked in the meeeeeer
The only audio book that I know of that he reads is Ready Player One, Which yeah isn't a good book but I thought he did an okay job reading it. Be put off by him being the narrator of other books.
He's no Nathaniel Parker but I don't think he's as bad as you say.
The first edition of the audiobook for The Martian was done by Podium Publishing and read by R. C. Bray. If you've previously purchased it you can still download it but it is no longer available for purchase or distribution, instead they've replaced it with one read by Wil Wheaton.