Although I like the book, it gets fairly dry and technical at points. It's as if, in order to be as complete as possible they went a little overboard. (Do I really need to know the aperture size inside every little part?)
I actually stopped reading it at chapter 6, which regards the ATLAS detector. There's nothing wrong with this chapter, it's just that, three-quarters the way through this book, I really needed a break.
On another note, try as I might, I cannot understand chapter 2, which explains the fundamental physics behind the experiments. It's way over my head, so much so I suspect it's written at a Phd level.
However, the tale behind the LHC is interesting in general, and you can find out about it in the book. For example, the beam starts out in an accelerator that's been around since 1959. One of the detectors uses brass obtained from Russian Navy artillery-shell casings. The beam itself has no more physical energy than a flying mosquito, but has more electrical energy than that of a speeding train. (I'm not entirely sure what that means, except that it would be very bad for the beam to stray, to the point where it would destroy much of the LHC.)
You also come across cool terms like "kicker magnets," "beam dump," and "duoplasmatron." And, even though I haven't finished the book, I'm fairly comfortable with my level of knowledge now. I figure I know more about the LHC than 99% of the population.
As for how reading the book has affected my life, I was able to notice the LHC's depiction in the recent Muppet movie. Dr. Bunsen Honeydew is shown standing in front of the ATLAS detector. The detector is still open, as it was undergoing construction while the picture was taken. You can see the toroidal magnets inside. I was surprised that I knew exactly what that thing was in the background. (And I was really surprised to find out that Dr. Honeydew was involved in the project!)
Also, any time they bring up the LHC on "The Big Bang Theory," I know what they're talking about. For example, when they were arguing over who would get to visit it, I had to wonder what there really is to visit there. As the LHC generates radioactivity while operating, the tunnels are sealed. (The "beam dump," where the beam finally stops, is surrounded by massive amounts of scrap iron and concrete to contain this.) Those gorgeous 7,000-ton detectors shown in pictures are off-limits.
So, if you want to learn about the LHC this book is an exhaustive (and perhaps exhausting) treatment of it. This is your grand tour. Despite its being a bit of a tough slog in parts, I still recommend this book to anyone who really wants to learn about this huge scientific project.