I had a similar reaction. I very much enjoyed reading On Intelligence shortly after it was published and was eagerly waiting for A Thousand Brains, but it left

I had a similar reaction. I very much enjoyed reading On Intelligence shortly after it was published and was eagerly waiting for A Thousand Brains, but it left me with a conflicting impression. I found some of the details I was looking for missing and it seemed like the book was sort of all over the place (especially in the second half). I was reading another book on related topic (how the brain operates and why/how the consciousness has evolved) at about the same time (The Hidden Spring: A Journey to the Source of Consciousness) and had a much more positive impression with a good picture on what the author was trying to convey.