Given the paucity of material that details the lore of the dashavatars, this book is a fine starting point to understand what it is about. That said, this is a fictionalised retelling, not a 1:1 translation, which does it what it set out to do as an entertaining introduction to the puranic episodes but cannot be taken as an authority source to learn from and debate on.
The author writes in a manner that is easy and conducive for long hours of reading. Needless to say, it's impossible to capture all the various philosophical and historical nuances of any of the avatar in about 30 minutes, but the author writes just enough to introduce the form to the reader who could deep-dive into any that captures their attention.
The narrator is authentic to the tone of the text and does not over-dramatise the various expressions that come along the way. The heaviness of the vocie made it a little challenging to listen for an extended period of time, but the book being short reduced the fatigue to a certain degree.
Overall, a good read/listen which I'd recommend to someone completely unaware of the various ithihasas or puranas in Hinduism.