I really have a hard time with "anarchist" political theory books set in the future -- they are very much a product of their time, and too often try to cover all the angles while hitting you with the polemic mallet.

The Dispossessed falls into this trap way too often -- Shevek, the protagonist, doesn't ever seem to have fun unless he's debating with someone, is caught in a diabolical conspiracy caused by Lust For Power, or is discussing temporal mechanics (although, of course, without any kind of technical backing or Greg Egan like mathspeak).

It's just... too much talk. Too little action. It reminds me of Floating Worlds.