For a 30+ year-old science book about cutting edge research, I enjoyed it. The book itself started slowly going through the modern history of subatomic particles, theories, and discoveries. The latter half walked through the exciting discoveries at CERN in the early 80's which was surprisingly interesting. (I am a former Physics teacher, so it might not be for everyone.)
The real takeaway, however, is that man's quest for understanding or explaining the complexity of the universe is insatiable. Although talked about and hoped for in the book, we have already heard reports of finding the Higgs boson. That's cool, but we, as a species, remain unable to put it all together in some grand unified theory, yet. We have ideas, will always have ideas, and will always search for ideas. If we find all the answers to our questions, it just seems like we'd ask more questions.