I definitely need to read the book, and I think the review itself is interesting and worth reading. I nodded with particular vigour at this paragraph:
Science fiction has been a critical element in the imagination of much of the Left. However, among many left-wing activists and theorists, it is something that is often approached sheepishly, with a certain degree of embarrassment. It is almost as if one's interest in science fiction is an engagement in a childhood game, such as "freeze tag." Oddly, when leftists actually begin to engage in a dialogue about science fiction, myriad themes generally emerge that demonstrate that it is anything but childish. For many people, science fiction and fantasy are nevertheless signs of immaturity rather than an engagement with ideological and political issues in another dimension.
Now I just need to decide whether to order the book immediately, or to be patient and keep to my pledge to significantly reduce the size of my owned-but-not-read pile before buying any new books.