It can be harder to write an audio book review because you don’t have passages to quote. I’ve had to look at publishers’ websites to find out how to spell words to write reviews before.
I keep a journal of audiobook reviews and comments. My entries get fairly elaborate with ancillary material (related illustrations, links, movies, even recipes!) but I have to be very careful about sharing or posting because I work for an audiobook publisher. It’s not enough to state that any opinions expressed are my own and not that of my employer as I have a personal and/or professional relationship with many of the players.
Audiobook reviews, audiobook news and general audiobook fandom
I have a tendency to write really short reviews when I do audio book reviews. I have a harder time during a summary since I don’t usually take very many notes while I’m reading and I don’t have any quotes. But I do try to get something up.