I was in college during the heyday of the Rubik's cube fad, and distinctly remember finding it annoying at bad parties that sometime late in the evening some nerd would get out a cube and begin solving while explaining in tedious fashion how it's done.
Evidently the fad is back, along with a competitive subculture the author investigates and joins, devoted to solving the cube as fast as possible. The problem, at least in my reading, is that without seeing video of the moves he's describing, it's basically impossible to follow. It would be like if you'd never played chess and didn't know how the pieces moved, and someone is talking to you in chess notation about Sicilian defenses, blitz openings, etc. etc.
I often enjoy books about obsessive niche subcultures [e.g., Stefan Fatsis [sp?] on scrabble], but this one was really not accessible to me, maybe in part b/c I didn't really sync with the author's sense of humor or taste in what needed detailing. Some of the anecdotes about trying to track down Rubik himself, what everyone was wearing at this or that meeting, etc. were almost amazingly boring.
I did enjoy his description near the end of Csikszentmihalyi's "flow" concept as a possible account of why people enjoy this challenging puzzle so much. Reminded me of an autobiographical chapter by the late psychologist Mike Mahoney (RIP), taking as its theme a quote from I think Ram Dass: "the object of the dance is not to finish; the object of the dance is to dance".
so...........if you know how to solve the cube or can at least picture what the hell is going on in these descriptions of permutations, rotations, etc., this might be fun for you. If not, I recommend that you invest your reading time elsewhere.