There are some wonderful concepts explored in this book, but unfortunately Vedral is a really bad writer.
On the plus side he conveys Von Neumann's ideas about self replicating machines well, and the idea that the information content of something is proportional to its surface area rather than its volume was well put.
But he glosses over too many details, starts on a topic then abandons it, states a conclusion with no reasoning, then several pages later gives the justification, but often in a hand waving way. The reader feels treated like Dr Who's assistant, we have to take his word for things because he can't explain them clearly and precisely.
He also seems to have completely missed the point with global warming, it isn't the waste heat of living that will kill us, it's the greenhouse effect.
However his reading list at the end is wonderful - though I would have included "The non-local universe" by Nadeau and Kafatos.