Most of the science in this book is not my field at all (some touches on biology a little bit), so I come to this as a complete layperson… and I wasn’t entirely enthused by the idea of a book about meteorites, admittedly — or at least, not sure it would work out to be my kind of book — because it’s not my field, and that’s for a reason! But Tim Gregory writes so clearly and with transparent passion about what he’s doing that I was immediately absorbed. You can tell that he loves his subject, and is eager to communicate it — and he’s a great communicator. You can make any subject boring if you’re not good at writing, and likewise, I think perhaps you can make anything interesting with the right style.
As far as the actual science and history he discusses goes, I’m not really qualified to comment, but everything seemed to hang together and make sense. I didn’t notice anything that jarred against what I actually know or could quickly look up. If you’re interested in space, and in cosmochemistry, then I think this is probably one for you!