First impressions: Reading feels very strange, because no reading-flow seems to come. After many sentences/paragraphs I feel like hitten by an gigantic hammer (Example: Explanation of the wall at the very beginning). I rarely felt such an impact on my own thinking. Even small things let me stumple and stop reading.
Reading is for me leisure or information-gathering, where leisure can contain a certain amount of information. For open minds 'The Dispossessed' seems to be new kind of reading for me. I can't relax while reading this book, it always nudges my brain - and I enjoy it. Of course the reading time will increase drastically compared to another Science-Fiction book of this size (Example: Freedom from Danial Suarez is almost same size, but was a very fast read - at the end it's just a hollywood-compatible story which rarely nudged my brain with great impact).
If 'The Dispossessed' continues like this... Well... 'Hainish Cycle' I come!
Disclaimer: I'm reading the german translation 'Freie Geister'