It’s a good listen. The story isn’t very complex, but the character are well done. I really enjoyed it. It’s one of the better SAO type stories I’ve listened to. Even though they were fairly vague with the rules, everything in the game seems understandable. Also the ending of the book doesn’t seem to be rushed.
Oh for any that may not know SAO is Sword Art Online (anime/manga) Also for any interested “Hack.” series is another anime/manga with the same type of setting.