I would thoroughly recommend this audiobook. It was interesting, fairly balanced and used a rigorous scientific approach to look at some of the more interesting unsolved questions in science.
However, I do feel that some level of basic understanding of science and the scientific process would be helpful for those listening to this. The author pitches this at a reasonably high level.
The narrator is very good and reads this well.
Overall, a pleasure - particularly for those of us with a scientific background or an enquiring turn of mind.
I would recommend this to anyone, although a basic (A level) understanding of the sciences would be useful. It covers a good range of topics in physics, chemistry and biology and although not entirely unbiased the author tries to put forward multiple sides of each story. The later 4 or 5 chapters were absolutely fascinating.